diff --git a/Android.mk b/Android.mk
index dc72ec6..dfe6788 100644
--- a/Android.mk
+++ b/Android.mk
@@ -14,6 +14,8 @@
 # limitations under the License.
 #
 
+ifneq ($(TARGET_SIMULATOR),true)
+
 LOCAL_PATH := $(call my-dir)
 include $(CLEAR_VARS)
 
@@ -21,7 +23,7 @@
 
 LOCAL_STATIC_JAVA_LIBRARIES := android-common
 
-LOCAL_SRC_FILES := $(call all-subdir-java-files)
+LOCAL_SRC_FILES := $(call all-subdir-java-files) $(call all-renderscript-files-under, src)
 
 LOCAL_PACKAGE_NAME := Launcher2
 LOCAL_CERTIFICATE := shared
@@ -31,3 +33,5 @@
 LOCAL_PROGUARD_FLAGS := -include $(LOCAL_PATH)/proguard.flags
 
 include $(BUILD_PACKAGE)
+
+endif
diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index 84ee599..91023d0 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -75,6 +75,7 @@
             android:stateNotNeeded="true"
             android:theme="@style/Theme"
             android:screenOrientation="nosensor"
+            android:configChanges="orientation"
             android:windowSoftInputMode="stateUnspecified|adjustPan">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
diff --git a/res/anim/all_apps_zoom_in.xml b/res/anim/all_apps_zoom_in.xml
new file mode 100644
index 0000000..644d1cf
--- /dev/null
+++ b/res/anim/all_apps_zoom_in.xml
@@ -0,0 +1,33 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2010 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+<set xmlns:android="http://schemas.android.com/apk/res/android"
+    android:interpolator="@android:anim/decelerate_interpolator"
+    android:shareInterpolator="true">
+    <translate xmlns:android="http://schemas.android.com/apk/res/android"
+        android:fromXDelta="0%p"
+        android:toXDelta="0%p"
+        android:fromYDelta="-20%p"
+        android:toYDelta="0%p"
+        android:duration="500" />
+    <scale
+        android:fromXScale="5.0"
+        android:toXScale="1.0"
+        android:fromYScale="5.0"
+        android:toYScale="1.0"
+        android:pivotX="50%"
+        android:pivotY="100%"
+        android:duration="500" />
+</set>
diff --git a/res/anim/all_apps_zoom_out.xml b/res/anim/all_apps_zoom_out.xml
new file mode 100644
index 0000000..23a8712
--- /dev/null
+++ b/res/anim/all_apps_zoom_out.xml
@@ -0,0 +1,33 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2010 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+<set xmlns:android="http://schemas.android.com/apk/res/android"
+    android:interpolator="@android:anim/accelerate_interpolator"
+    android:shareInterpolator="true">
+    <translate xmlns:android="http://schemas.android.com/apk/res/android"
+        android:fromXDelta="0%p"
+        android:toXDelta="0%p"
+        android:fromYDelta="0%p"
+        android:toYDelta="-20%p"
+        android:duration="500" />
+    <scale
+        android:fromXScale="1.0"
+        android:toXScale="5.0"
+        android:fromYScale="1.0"
+        android:toYScale="5.0"
+        android:pivotX="50%"
+        android:pivotY="100%"
+        android:duration="500" />
+</set>
diff --git a/res/anim/home_customization_drawer_slide_down.xml b/res/anim/home_customization_drawer_slide_down.xml
new file mode 100644
index 0000000..b3041c7
--- /dev/null
+++ b/res/anim/home_customization_drawer_slide_down.xml
@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2009 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+<translate xmlns:android="http://schemas.android.com/apk/res/android"
+    android:fromXDelta="0%p"
+    android:toXDelta="0%p"
+    android:fromYDelta="0%p"
+    android:toYDelta="100%p"
+
+    android:duration="500" />
diff --git a/res/anim/home_customization_drawer_slide_up.xml b/res/anim/home_customization_drawer_slide_up.xml
new file mode 100644
index 0000000..3df2320
--- /dev/null
+++ b/res/anim/home_customization_drawer_slide_up.xml
@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2009 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+<translate xmlns:android="http://schemas.android.com/apk/res/android"
+    android:fromXDelta="0%p"
+    android:toXDelta="0%p"
+    android:fromYDelta="100%p"
+    android:toYDelta="0%p"
+
+    android:duration="500" />
diff --git a/res/drawable/add_button.png b/res/drawable/add_button.png
new file mode 100644
index 0000000..0edcfa3
--- /dev/null
+++ b/res/drawable/add_button.png
Binary files differ
diff --git a/res/drawable/default_widget_preview.9.png b/res/drawable/default_widget_preview.9.png
new file mode 100644
index 0000000..e966b1b
--- /dev/null
+++ b/res/drawable/default_widget_preview.9.png
Binary files differ
diff --git a/res/drawable/rounded_rect_green.9.png b/res/drawable/rounded_rect_green.9.png
new file mode 100644
index 0000000..5787c3d
--- /dev/null
+++ b/res/drawable/rounded_rect_green.9.png
Binary files differ
diff --git a/res/drawable/rounded_rect_red.9.png b/res/drawable/rounded_rect_red.9.png
new file mode 100644
index 0000000..7a5fdee
--- /dev/null
+++ b/res/drawable/rounded_rect_red.9.png
Binary files differ
diff --git a/res/layout-land/all_apps_2d.xml b/res/layout-land/all_apps_2d.xml
index a253b93..b7fcd45 100644
--- a/res/layout-land/all_apps_2d.xml
+++ b/res/layout-land/all_apps_2d.xml
@@ -22,7 +22,7 @@
     android:layout_width="match_parent"
     android:layout_height="match_parent"
     android:padding="2dip"
-    >
+    android:background="#FF000000">
 
     <GridView android:id="@+id/all_apps_2d_grid"
         android:tag="all_apps_2d_grid"
diff --git a/res/layout-port/all_apps_2d.xml b/res/layout-port/all_apps_2d.xml
index 0607d62..081cba2 100644
--- a/res/layout-port/all_apps_2d.xml
+++ b/res/layout-port/all_apps_2d.xml
@@ -22,7 +22,7 @@
     android:layout_width="match_parent"
     android:layout_height="match_parent"
     android:padding="2dip"
-    >
+    android:background="#FF000000">
 
     <GridView android:id="@+id/all_apps_2d_grid"
         android:tag="all_apps_2d_grid"
diff --git a/res/layout-xlarge/all_apps_tabbed.xml b/res/layout-xlarge/all_apps_tabbed.xml
new file mode 100644
index 0000000..a5f3d6f
--- /dev/null
+++ b/res/layout-xlarge/all_apps_tabbed.xml
@@ -0,0 +1,56 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2010 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+<com.android.launcher2.AllAppsTabbed xmlns:android="http://schemas.android.com/apk/res/android">
+    <LinearLayout
+        android:orientation="vertical"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent">
+        <TabWidget
+            android:id="@android:id/tabs"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content" />
+        <FrameLayout
+            android:id="@android:id/tabcontent"
+            android:layout_width="match_parent"
+            android:layout_height="match_parent">
+
+            <com.android.launcher2.AllApps2D
+                android:id="@+id/all_apps_2d"
+                android:layout_width="match_parent"
+                android:layout_height="match_parent"
+                android:padding="2dip">
+                <GridView android:id="@+id/all_apps_2d_grid"
+                    android:tag="all_apps_2d_grid"
+                    android:scrollbars="none"
+                    android:drawSelectorOnTop="false"
+                    android:listSelector="@drawable/grid_selector"
+                    android:verticalSpacing="10dip"
+                    android:numColumns="4"
+                    android:fadingEdgeLength="0dip"
+                    android:cacheColorHint="#00000000"
+                    android:layout_width="match_parent"
+                    android:layout_height="match_parent"
+                    android:layout_alignParentBottom="true"
+                    android:layout_marginBottom="@dimen/button_bar_height"
+                    android:layout_marginTop="8dip"
+                    android:nextFocusDown="@+id/all_apps_2d_home"
+                    android:nextFocusUp="@null"
+                    android:nextFocusLeft="@null"
+                    android:nextFocusRight="@null" />
+            </com.android.launcher2.AllApps2D>
+        </FrameLayout>
+    </LinearLayout>
+</com.android.launcher2.AllAppsTabbed>
diff --git a/res/layout-xlarge/launcher.xml b/res/layout-xlarge/launcher.xml
new file mode 100644
index 0000000..61457bf
--- /dev/null
+++ b/res/layout-xlarge/launcher.xml
@@ -0,0 +1,125 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2007 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+
+<com.android.launcher2.DragLayer
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:launcher="http://schemas.android.com/apk/res/com.android.launcher"
+
+    android:id="@+id/drag_layer"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent">
+
+    <include
+        layout="@layout/all_apps_tabbed"
+        android:id="@+id/all_apps_view"
+        android:layout_width="match_parent"
+        android:layout_height="500dip"
+        android:layout_gravity="top"/>
+
+    <!-- The workspace contains 5 screens of cells -->
+    <com.android.launcher2.Workspace
+        android:id="@+id/workspace"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        launcher:canonicalDeviceWidth="8"
+        launcher:canonicalDeviceHeight="4">
+
+        <include android:id="@+id/cell1" layout="@layout/workspace_screen" />
+        <include android:id="@+id/cell2" layout="@layout/workspace_screen" />
+        <include android:id="@+id/cell3" layout="@layout/workspace_screen" />
+        <include android:id="@+id/cell4" layout="@layout/workspace_screen" />
+        <include android:id="@+id/cell5" layout="@layout/workspace_screen" />
+    </com.android.launcher2.Workspace>
+
+    <RelativeLayout
+        android:id="@+id/all_apps_button_cluster"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_gravity="top|right">
+        <com.android.launcher2.HandleView
+            style="@style/HotseatButton"
+            android:id="@+id/all_apps_button"
+            android:layout_height="@dimen/button_bar_height"
+            android:layout_width="@dimen/button_bar_height"
+
+            android:src="@drawable/all_apps_button"
+            launcher:direction="horizontal"  />
+        <ImageView
+            android:id="@+id/add_button"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_toRightOf="@id/all_apps_button"
+
+            android:layout_centerVertical="true"
+            android:scaleType="center"
+            android:src="@drawable/add_button"
+
+            android:onClick="onClickAddButton"
+            android:focusable="true"
+            android:clickable="true" />
+        <com.android.launcher2.DeleteZone
+            android:id="@+id/delete_zone"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:paddingTop="@dimen/delete_zone_padding"
+            android:layout_toRightOf="@id/all_apps_button"
+
+            android:scaleType="center"
+            android:src="@drawable/delete_zone_selector"
+            android:visibility="gone"
+            launcher:direction="horizontal" />
+    </RelativeLayout>
+
+    <TabHost
+        android:id="@android:id/tabhost"
+        android:layout_width="match_parent"
+        android:layout_height="200dip"
+        android:layout_gravity="bottom"
+        android:visibility="gone">
+        <LinearLayout
+            android:orientation="vertical"
+            android:layout_width="match_parent"
+            android:layout_height="match_parent">
+            <TabWidget
+                android:id="@android:id/tabs"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content" />
+            <FrameLayout
+                android:id="@android:id/tabcontent"
+                android:background="#ff000000"
+                android:layout_width="match_parent"
+                android:layout_height="match_parent">
+                <com.android.launcher2.WidgetChooser
+                    android:id="@+id/widget_chooser"
+                    android:layout_width="match_parent"
+                    android:layout_height="match_parent" />
+                    <com.android.launcher2.FolderChooser
+                        android:id="@+id/folder_chooser"
+                        android:layout_width="match_parent"
+                        android:layout_height="match_parent" />
+                    <com.android.launcher2.ShortcutChooser
+                        android:id="@+id/shortcut_chooser"
+                        android:layout_width="match_parent"
+                        android:layout_height="match_parent" />
+                    <TextView
+                        android:id="@+id/wallpaperstab"
+                        android:layout_width="match_parent"
+                        android:layout_height="match_parent"
+                        android:text="@string/wallpapers_temp_tab_text" />
+             </FrameLayout>
+          </LinearLayout>
+    </TabHost>
+</com.android.launcher2.DragLayer>
diff --git a/res/layout-xlarge/workspace_screen.xml b/res/layout-xlarge/workspace_screen.xml
new file mode 100644
index 0000000..aa892b9
--- /dev/null
+++ b/res/layout-xlarge/workspace_screen.xml
@@ -0,0 +1,32 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2008 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+
+<com.android.launcher2.CellLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:launcher="http://schemas.android.com/apk/res/com.android.launcher"
+
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:hapticFeedbackEnabled="false"
+
+    launcher:cellWidth="@dimen/workspace_cell_width"
+    launcher:cellHeight="@dimen/workspace_cell_height"
+    launcher:longAxisStartPadding="8dip"
+    launcher:longAxisEndPadding="8dip"
+    launcher:shortAxisStartPadding="8dip"
+    launcher:shortAxisEndPadding="8dip"
+    launcher:shortAxisCells="4"
+    launcher:longAxisCells="8" />
diff --git a/res/layout/home_customization_drawer_item.xml b/res/layout/home_customization_drawer_item.xml
new file mode 100644
index 0000000..e3d20a1
--- /dev/null
+++ b/res/layout/home_customization_drawer_item.xml
@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2010 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+
+<TextView xmlns:android="http://schemas.android.com/apk/res/android"
+    android:background="?android:attr/galleryItemBackground"
+    android:layout_width="200dip"
+    android:layout_height="match_parent"
+    android:padding="20dip"
+    android:orientation="vertical"
+    android:gravity="center_horizontal|center_vertical|clip_vertical"
+    android:textAppearance="?android:attr/textAppearanceMedium" />
\ No newline at end of file
diff --git a/res/raw/allapps.rs b/res/raw/allapps.rs
deleted file mode 100644
index af5abd3..0000000
--- a/res/raw/allapps.rs
+++ /dev/null
@@ -1,427 +0,0 @@
-#pragma version(1)
-#pragma stateVertex(PV)
-#pragma stateFragment(PFTexNearest)
-#pragma stateStore(PSIcons)
-
-#define PI 3.14159f
-
-int g_SpecialHWWar;
-
-// Attraction to center values from page edge to page center.
-float g_AttractionTable[9];
-float g_FrictionTable[9];
-float g_PhysicsTableSize;
-
-float g_PosPage;
-float g_PosVelocity;
-float g_LastPositionX;
-int g_LastTouchDown;
-float g_DT;
-int g_LastTime;
-int g_PosMax;
-float g_Zoom;
-float g_Animation;
-float g_OldPosPage;
-float g_OldPosVelocity;
-float g_OldZoom;
-float g_MoveToTotalTime;
-float g_MoveToTime;
-float g_MoveToOldPos;
-
-int g_Cols;
-int g_Rows;
-
-// Drawing constants, should be parameters ======
-#define VIEW_ANGLE 1.28700222f
-
-int g_DrawLastFrame;
-int lastFrame(int draw) {
-    // We draw one extra frame to work around the last frame post bug.
-    // We also need to track if we drew the last frame to deal with large DT
-    // in the physics.
-    int ret = g_DrawLastFrame | draw;
-    g_DrawLastFrame = draw;
-    return ret;  // should return draw instead.
-}
-
-void updateReadback() {
-    if ((g_OldPosPage != g_PosPage) ||
-        (g_OldPosVelocity != g_PosVelocity) ||
-        (g_OldZoom != g_Zoom)) {
-
-        g_OldPosPage = g_PosPage;
-        g_OldPosVelocity = g_PosVelocity;
-        g_OldZoom = g_Zoom;
-
-        int i[3];
-        i[0] = g_PosPage * (1 << 16);
-        i[1] = g_PosVelocity * (1 << 16);
-        i[2] = g_OldZoom * (1 << 16);
-        sendToClient(&i[0], 1, 12, 1);
-    }
-}
-
-void setColor(float r, float g, float b, float a) {
-    if (g_SpecialHWWar) {
-        color(0, 0, 0, 0.001f);
-    } else {
-        color(r, g, b, a);
-    }
-}
-
-void init() {
-    g_AttractionTable[0] = 20.0f;
-    g_AttractionTable[1] = 20.0f;
-    g_AttractionTable[2] = 20.0f;
-    g_AttractionTable[3] = 10.0f;
-    g_AttractionTable[4] = -10.0f;
-    g_AttractionTable[5] = -20.0f;
-    g_AttractionTable[6] = -20.0f;
-    g_AttractionTable[7] = -20.0f;
-    g_AttractionTable[8] = -20.0f;  // dup 7 to avoid a clamp later
-    g_FrictionTable[0] = 10.0f;
-    g_FrictionTable[1] = 10.0f;
-    g_FrictionTable[2] = 11.0f;
-    g_FrictionTable[3] = 15.0f;
-    g_FrictionTable[4] = 15.0f;
-    g_FrictionTable[5] = 11.0f;
-    g_FrictionTable[6] = 10.0f;
-    g_FrictionTable[7] = 10.0f;
-    g_FrictionTable[8] = 10.0f;  // dup 7 to avoid a clamp later
-    g_PhysicsTableSize = 7;
-
-    g_PosVelocity = 0;
-    g_PosPage = 0;
-    g_LastTouchDown = 0;
-    g_LastPositionX = 0;
-    g_Zoom = 0;
-    g_Animation = 1.f;
-    g_SpecialHWWar = 1;
-    g_MoveToTime = 0;
-    g_MoveToOldPos = 0;
-    g_MoveToTotalTime = 0.2f; // Duration of scrolling 1 line
-}
-
-void resetHWWar() {
-    g_SpecialHWWar = 1;
-}
-
-void move() {
-    if (g_LastTouchDown) {
-        float dx = -(state->newPositionX - g_LastPositionX);
-        g_PosVelocity = 0;
-        g_PosPage += dx * 5.2f;
-
-        float pmin = -0.49f;
-        float pmax = g_PosMax + 0.49f;
-        g_PosPage = clampf(g_PosPage, pmin, pmax);
-    }
-    g_LastTouchDown = state->newTouchDown;
-    g_LastPositionX = state->newPositionX;
-    g_MoveToTime = 0;
-    //debugF("Move P", g_PosPage);
-}
-
-void moveTo() {
-    g_MoveToTime = g_MoveToTotalTime;
-    g_PosVelocity = 0;
-    g_MoveToOldPos = g_PosPage;
-
-	// debugF("======= moveTo", state->targetPos);
-}
-
-void setZoom() {
-    g_Zoom = state->zoomTarget;
-    g_DrawLastFrame = 1;
-    updateReadback();
-}
-
-void fling() {
-    g_LastTouchDown = 0;
-    g_PosVelocity = -state->flingVelocity * 4;
-    float av = fabsf(g_PosVelocity);
-    float minVel = 3.5f;
-
-    minVel *= 1.f - (fabsf(fracf(g_PosPage + 0.5f) - 0.5f) * 0.45f);
-
-    if (av < minVel && av > 0.2f) {
-        if (g_PosVelocity > 0) {
-            g_PosVelocity = minVel;
-        } else {
-            g_PosVelocity = -minVel;
-        }
-    }
-
-    if (g_PosPage <= 0) {
-        g_PosVelocity = maxf(0, g_PosVelocity);
-    }
-    if (g_PosPage > g_PosMax) {
-        g_PosVelocity = minf(0, g_PosVelocity);
-    }
-}
-
-float
-modf(float x, float y)
-{
-    return x-(y*floorf(x/y));
-}
-
-
-/*
- * Interpolates values in the range 0..1 to a curve that eases in
- * and out.
- */
-float
-getInterpolation(float input) {
-    return (cosf((input + 1) * PI) / 2.0f) + 0.5f;
-}
-
-
-void updatePos() {
-    if (g_LastTouchDown) {
-        return;
-    }
-
-    float tablePosNorm = fracf(g_PosPage + 0.5f);
-    float tablePosF = tablePosNorm * g_PhysicsTableSize;
-    int tablePosI = tablePosF;
-    float tablePosFrac = tablePosF - tablePosI;
-    float accel = lerpf(g_AttractionTable[tablePosI],
-                        g_AttractionTable[tablePosI + 1],
-                        tablePosFrac) * g_DT;
-    float friction = lerpf(g_FrictionTable[tablePosI],
-                        g_FrictionTable[tablePosI + 1],
-                        tablePosFrac) * g_DT;
-
-    if (g_MoveToTime) {
-        // New position is old posiition + (total distance) * (interpolated time)
-        g_PosPage = g_MoveToOldPos + (state->targetPos - g_MoveToOldPos) * getInterpolation((g_MoveToTotalTime - g_MoveToTime) / g_MoveToTotalTime);
-        g_MoveToTime -= g_DT;
-        if (g_MoveToTime <= 0) {
-            g_MoveToTime = 0;
-            g_PosPage = state->targetPos;
-        }
-        return;
-    }
-
-    // If our velocity is low OR acceleration is opposing it, apply it.
-    if (fabsf(g_PosVelocity) < 4.0f || (g_PosVelocity * accel) < 0) {
-        g_PosVelocity += accel;
-    }
-    //debugF("g_PosPage", g_PosPage);
-    //debugF("  g_PosVelocity", g_PosVelocity);
-    //debugF("  friction", friction);
-    //debugF("  accel", accel);
-
-    // Normal physics
-    if (g_PosVelocity > 0) {
-        g_PosVelocity -= friction;
-        g_PosVelocity = maxf(g_PosVelocity, 0);
-    } else {
-        g_PosVelocity += friction;
-        g_PosVelocity = minf(g_PosVelocity, 0);
-    }
-
-    if ((friction > fabsf(g_PosVelocity)) && (friction > fabsf(accel))) {
-        // Special get back to center and overcome friction physics.
-        float t = tablePosNorm - 0.5f;
-        if (fabsf(t) < (friction * g_DT)) {
-            // really close, just snap
-            g_PosPage = roundf(g_PosPage);
-            g_PosVelocity = 0;
-        } else {
-            if (t > 0) {
-                g_PosVelocity = -friction;
-            } else {
-                g_PosVelocity = friction;
-            }
-        }
-    }
-
-    // Check for out of boundry conditions.
-    if (g_PosPage < 0 && g_PosVelocity < 0) {
-        float damp = 1.0 + (g_PosPage * 4);
-        damp = clampf(damp, 0.f, 0.9f);
-        g_PosVelocity *= damp;
-    }
-    if (g_PosPage > g_PosMax && g_PosVelocity > 0) {
-        float damp = 1.0 - ((g_PosPage - g_PosMax) * 4);
-        damp = clampf(damp, 0.f, 0.9f);
-        g_PosVelocity *= damp;
-    }
-
-    g_PosPage += g_PosVelocity * g_DT;
-    g_PosPage = clampf(g_PosPage, -0.49, g_PosMax + 0.49);
-}
-
-
-void
-draw_home_button()
-{
-    setColor(1.0f, 1.0f, 1.0f, 1.0f);
-    bindTexture(NAMED_PFTexNearest, 0, state->homeButtonId);
-
-    float w = getWidth();
-    float h = getHeight();
-
-    float x;
-    float y;
-    if (getWidth() > getHeight()) {
-        x = w - (params->homeButtonTextureWidth * (1 - g_Animation)) + 20;
-        y = (h - params->homeButtonTextureHeight) * 0.5f;
-    } else {
-        x = (w - params->homeButtonTextureWidth) / 2;
-        y = -g_Animation * params->homeButtonTextureHeight;
-        y -= 30; // move the house to the edge of the screen as it doesn't fill the texture.
-    }
-
-    drawSpriteScreenspace(x, y, 0, params->homeButtonTextureWidth, params->homeButtonTextureHeight);
-}
-
-void drawFrontGrid(float rowOffset, float p)
-{
-    float h = getHeight();
-    float w = getWidth();
-
-    int intRowOffset = rowOffset;
-    float rowFrac = rowOffset - intRowOffset;
-    float colWidth = 120.f;//getWidth() / 4;
-    float rowHeight = colWidth + 25.f;
-    float yoff = 0.5f * h + 1.5f * rowHeight;
-
-    int row, col;
-    int colCount = 4;
-    if (w > h) {
-        colCount = 6;
-        rowHeight -= 12.f;
-        yoff = 0.47f * h + 1.0f * rowHeight;
-    }
-
-    int iconNum = (intRowOffset - 5) * colCount;
-
-
-    bindProgramVertex(NAMED_PVCurve);
-
-    vpConstants->Position.z = p;
-
-    setColor(1.0f, 1.0f, 1.0f, 1.0f);
-    for (row = -5; row < 15; row++) {
-        float y = yoff - ((-rowFrac + row) * rowHeight);
-
-        for (col=0; col < colCount; col++) {
-            if (iconNum >= state->iconCount) {
-                return;
-            }
-
-            if (iconNum >= 0) {
-                float x = colWidth * col + (colWidth / 2);
-                vpConstants->Position.x = x + 0.2f;
-
-                if (state->selectedIconIndex == iconNum && !p) {
-                    bindProgramFragment(NAMED_PFTexNearest);
-                    bindTexture(NAMED_PFTexNearest, 0, state->selectedIconTexture);
-                    vpConstants->ImgSize.x = SELECTION_TEXTURE_WIDTH_PX;
-                    vpConstants->ImgSize.y = SELECTION_TEXTURE_HEIGHT_PX;
-                    vpConstants->Position.y = y - (SELECTION_TEXTURE_HEIGHT_PX - ICON_TEXTURE_HEIGHT_PX) * 0.5f;
-                    drawSimpleMesh(NAMED_SMCell);
-                }
-
-                bindProgramFragment(NAMED_PFTexMip);
-                vpConstants->ImgSize.x = ICON_TEXTURE_WIDTH_PX;
-                vpConstants->ImgSize.y = ICON_TEXTURE_HEIGHT_PX;
-                vpConstants->Position.y = y - 0.2f;
-                bindTexture(NAMED_PFTexMip, 0, loadI32(ALLOC_ICON_IDS, iconNum));
-                drawSimpleMesh(NAMED_SMCell);
-
-                bindProgramFragment(NAMED_PFTexMipAlpha);
-                vpConstants->ImgSize.x = 120.f;
-                vpConstants->ImgSize.y = 64.f;
-                vpConstants->Position.y = y - 64.f - 0.2f;
-                bindTexture(NAMED_PFTexMipAlpha, 0, loadI32(ALLOC_LABEL_IDS, iconNum));
-                drawSimpleMesh(NAMED_SMCell);
-            }
-            iconNum++;
-        }
-    }
-}
-
-
-int
-main(int launchID)
-{
-    // Compute dt in seconds.
-    int newTime = uptimeMillis();
-    g_DT = (newTime - g_LastTime) / 1000.f;
-    g_LastTime = newTime;
-
-    if (!g_DrawLastFrame) {
-        // If we stopped rendering we cannot use DT.
-        // assume 30fps in this case.
-        g_DT = 0.033f;
-    }
-    // physics may break if DT is large.
-    g_DT = minf(g_DT, 0.2f);
-
-    if (g_Zoom != state->zoomTarget) {
-        float dz = g_DT * 1.7f;
-        if (state->zoomTarget < 0.5f) {
-            dz = -dz;
-        }
-        if (fabsf(g_Zoom - state->zoomTarget) < fabsf(dz)) {
-            g_Zoom = state->zoomTarget;
-        } else {
-            g_Zoom += dz;
-        }
-        updateReadback();
-    }
-    g_Animation = powf(1-g_Zoom, 3);
-
-    // Set clear value to dim the background based on the zoom position.
-    if ((g_Zoom < 0.001f) && (state->zoomTarget < 0.001f) && !g_SpecialHWWar) {
-        pfClearColor(0.0f, 0.0f, 0.0f, 0.0f);
-        // When we're zoomed out and not tracking motion events, reset the pos to 0.
-        if (!g_LastTouchDown) {
-            g_PosPage = 0;
-        }
-        return lastFrame(0);
-    } else {
-        pfClearColor(0.0f, 0.0f, 0.0f, g_Zoom);
-    }
-
-    // icons & labels
-    int iconCount = state->iconCount;
-    if (getWidth() > getHeight()) {
-        g_Cols = 6;
-        g_Rows = 3;
-    } else {
-        g_Cols = 4;
-        g_Rows = 4;
-    }
-    g_PosMax = ((iconCount + (g_Cols-1)) / g_Cols) - g_Rows;
-    if (g_PosMax < 0) g_PosMax = 0;
-
-    updatePos();
-    updateReadback();
-
-    //debugF("    draw g_PosPage", g_PosPage);
-
-    // Draw the icons ========================================
-    drawFrontGrid(g_PosPage, g_Animation);
-
-    bindProgramFragment(NAMED_PFTexNearest);
-    draw_home_button();
-
-    // This is a WAR to do a rendering pass without drawing during init to
-    // force the driver to preload and compile its shaders.
-    // Without this the first animation does not appear due to the time it
-    // takes to init the driver state.
-    if (g_SpecialHWWar) {
-        g_SpecialHWWar = 0;
-        return 1;
-    }
-
-    // Bug workaround where the last frame is not always displayed
-    // So we keep rendering until the bug is fixed.
-    return lastFrame((g_PosVelocity != 0) || fracf(g_PosPage) || g_Zoom != state->zoomTarget || (g_MoveToTime != 0));
-}
-
diff --git a/res/values-xlarge/dimens.xml b/res/values-xlarge/dimens.xml
new file mode 100644
index 0000000..8279492
--- /dev/null
+++ b/res/values-xlarge/dimens.xml
@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2009 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+
+<resources>
+    <dimen name="workspace_cell_width">76dip</dimen>
+    <dimen name="workspace_cell_height">76dip</dimen>
+</resources>
diff --git a/res/values-xlarge/styles.xml b/res/values-xlarge/styles.xml
new file mode 100644
index 0000000..e4c047f
--- /dev/null
+++ b/res/values-xlarge/styles.xml
@@ -0,0 +1,30 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+/*
+* Copyright (C) 2008 The Android Open Source Project
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*      http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+-->
+
+<resources>
+    <style name="WorkspaceIcon.Portrait">
+        <item name="android:drawablePadding">4dip</item>
+        <item name="android:paddingTop">1dip</item>
+    </style>
+
+    <style name="WorkspaceIcon.Landscape">
+        <item name="android:drawablePadding">4dip</item>
+        <item name="android:paddingTop">1dip</item>
+    </style>
+</resources>
diff --git a/res/values/attrs.xml b/res/values/attrs.xml
index 7839120..c977f97 100644
--- a/res/values/attrs.xml
+++ b/res/values/attrs.xml
@@ -32,6 +32,10 @@
     <declare-styleable name="Workspace">
         <!-- The first screen the workspace should display. -->
         <attr name="defaultScreen" format="integer"  />
+        <!-- The number of horizontal cells for the device in its natural orientation -->
+        <attr name="canonicalDeviceWidth" format="integer"  />
+        <!-- The number of vertical cells for the device in its natural orientation -->
+        <attr name="canonicalDeviceHeight" format="integer"  />
     </declare-styleable>
     
     <!-- CellLayout specific attributes. These attributes are used to customize
diff --git a/res/values/strings.xml b/res/values/strings.xml
index 86c1b3c..f61871d 100644
--- a/res/values/strings.xml
+++ b/res/values/strings.xml
@@ -43,6 +43,11 @@
     <string name="activity_not_found">Application is not installed on your phone.</string>
     <!-- List item for configuring the current wallpaper -->
     <string name="configure_wallpaper">Configure...</string>
+    <string name="widgets_tab_label">Widgets</string>
+    <string name="folders_tab_label">Folders</string>
+    <string name="shortcuts_tab_label">Shortcuts</string>
+    <string name="wallpapers_tab_label">Wallpapers</string>
+    <string name="wallpapers_temp_tab_text">This will be the wallpapers tab</string>
 
     <!-- Folders -->
     <skip />
diff --git a/src/com/android/launcher2/AllApps2D.java b/src/com/android/launcher2/AllApps2D.java
index 7ad5e49..b993364 100644
--- a/src/com/android/launcher2/AllApps2D.java
+++ b/src/com/android/launcher2/AllApps2D.java
@@ -16,32 +16,32 @@
 
 package com.android.launcher2;
 
+import com.android.launcher.R;
+
 import android.content.ComponentName;
 import android.content.Context;
 import android.content.res.Resources;
-import android.graphics.drawable.BitmapDrawable;
 import android.graphics.Bitmap;
-import android.graphics.Color;
+import android.graphics.PixelFormat;
+import android.graphics.drawable.BitmapDrawable;
+import android.graphics.drawable.Drawable;
 import android.util.AttributeSet;
 import android.util.Log;
 import android.view.KeyEvent;
-import android.view.ViewGroup;
 import android.view.LayoutInflater;
 import android.view.View;
+import android.view.ViewGroup;
 import android.view.animation.AnimationUtils;
-import android.view.ViewConfiguration;
 import android.widget.AdapterView;
-import android.widget.ImageButton;
-import android.widget.TextView;
 import android.widget.ArrayAdapter;
 import android.widget.GridView;
+import android.widget.ImageButton;
 import android.widget.RelativeLayout;
+import android.widget.TextView;
 
 import java.util.ArrayList;
 import java.util.Collections;
 
-import com.android.launcher.R;
-
 public class AllApps2D
         extends RelativeLayout
         implements AllAppsView,
@@ -68,6 +68,8 @@
 
     private AppsAdapter mAppsAdapter;
 
+    private boolean mIsViewOpaque;
+
     // ------------------------------------------------------------
     
     public static class HomeButton extends ImageButton {
@@ -126,24 +128,24 @@
 
     @Override
     protected void onFinishInflate() {
-        setBackgroundColor(Color.BLACK);
+        mIsViewOpaque = super.isOpaque();
 
         try {
             mGrid = (GridView)findViewWithTag("all_apps_2d_grid");
             if (mGrid == null) throw new Resources.NotFoundException();
             mGrid.setOnItemClickListener(this);
             mGrid.setOnItemLongClickListener(this);
-            mGrid.setBackgroundColor(Color.BLACK);
-            mGrid.setCacheColorHint(Color.BLACK);
             
+            // The home button is optional; some layouts might not use it
             ImageButton homeButton = (ImageButton) findViewWithTag("all_apps_2d_home");
-            if (homeButton == null) throw new Resources.NotFoundException();
-            homeButton.setOnClickListener(
-                new View.OnClickListener() {
-                    public void onClick(View v) {
-                        mLauncher.closeAllApps(true);
-                    }
-                });
+            if (homeButton != null) {
+                homeButton.setOnClickListener(
+                    new View.OnClickListener() {
+                        public void onClick(View v) {
+                            mLauncher.closeAllApps(true);
+                        }
+                    });
+            }
         } catch (Resources.NotFoundException e) {
             Log.e(TAG, "Can't find necessary layout elements for AllApps2D");
         }
@@ -252,7 +254,7 @@
 
     @Override
     public boolean isOpaque() {
-        return mZoom > 0.999f;
+        return mIsViewOpaque && mZoom > 0.999f;
     }
 
     public void setApps(ArrayList<ApplicationInfo> list) {
diff --git a/src/com/android/launcher2/AllApps3D.java b/src/com/android/launcher2/AllApps3D.java
index b8aa8ec..bb18870 100644
--- a/src/com/android/launcher2/AllApps3D.java
+++ b/src/com/android/launcher2/AllApps3D.java
@@ -16,6 +16,10 @@
 
 package com.android.launcher2;
 
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Collections;
+
 import android.content.ComponentName;
 import android.content.Context;
 import android.content.res.Resources;
@@ -29,12 +33,10 @@
 import android.renderscript.ProgramStore;
 import android.renderscript.ProgramVertex;
 import android.renderscript.RSSurfaceView;
-import android.renderscript.RenderScriptGL;
 import android.renderscript.RenderScript;
+import android.renderscript.RenderScriptGL;
 import android.renderscript.Sampler;
-import android.renderscript.Script;
-import android.renderscript.ScriptC;
-import android.renderscript.SimpleMesh;
+import android.renderscript.Mesh;
 import android.renderscript.Type;
 import android.util.AttributeSet;
 import android.util.DisplayMetrics;
@@ -48,10 +50,6 @@
 import android.view.ViewConfiguration;
 import android.view.accessibility.AccessibilityEvent;
 
-import java.util.ArrayList;
-import java.util.Arrays;
-import java.util.Collections;
-
 import com.android.launcher.R;
 
 public class AllApps3D extends RSSurfaceView
@@ -131,27 +129,16 @@
     private boolean mSurrendered;
 
     private int mRestoreFocusIndex = -1;
-    
+
     @SuppressWarnings({"UnusedDeclaration"})
     static class Defines {
-        public static final int ALLOC_PARAMS = 0;
-        public static final int ALLOC_STATE = 1;
-        public static final int ALLOC_ICON_IDS = 3;
-        public static final int ALLOC_LABEL_IDS = 4;
-        public static final int ALLOC_VP_CONSTANTS = 5;
-
         public static final int COLUMNS_PER_PAGE_PORTRAIT = 4;
         public static final int ROWS_PER_PAGE_PORTRAIT = 4;
 
         public static final int COLUMNS_PER_PAGE_LANDSCAPE = 6;
         public static final int ROWS_PER_PAGE_LANDSCAPE = 3;
 
-        public static final int ICON_WIDTH_PX = 64;
-        public static final int ICON_TEXTURE_WIDTH_PX = 74;
         public static final int SELECTION_TEXTURE_WIDTH_PX = 74 + 20;
-
-        public static final int ICON_HEIGHT_PX = 64;
-        public static final int ICON_TEXTURE_HEIGHT_PX = 74;
         public static final int SELECTION_TEXTURE_HEIGHT_PX = 74 + 20;
     }
 
@@ -159,7 +146,6 @@
         super(context, attrs);
         setFocusable(true);
         setSoundEffectsEnabled(false);
-        getHolder().setFormat(PixelFormat.TRANSLUCENT);
         final ViewConfiguration config = ViewConfiguration.get(context);
         mSlop = config.getScaledTouchSlop();
         mMaxFlingVelocity = config.getScaledMaximumFlingVelocity();
@@ -274,24 +260,25 @@
         sRollo.dirtyCheck();
         sRollo.resize(w, h);
 
+        Log.d(TAG, "sc " + sRS);
         if (sRS != null) {
             sRS.mMessageCallback = mMessageProc = new AAMessage();
         }
 
         if (sRollo.mUniformAlloc != null) {
-            float tf[] = new float[] {72.f, 72.f,
-                                      120.f, 120.f, 0.f, 0.f,
-                                      120.f, 680.f,
-                                      (2.f / 480.f), 0, -((float)w / 2) - 0.25f, -380.25f};
+            ScriptField_VpConsts.Item i = new ScriptField_VpConsts.Item();
+            i.ScaleOffset.x = (2.f / 480.f);
+            i.ScaleOffset.y = 0;
+            i.ScaleOffset.z = -((float)w / 2) - 0.25f;
+            i.ScaleOffset.w = -380.25f;
+            i.BendPos.x = 120.f;
+            i.BendPos.y = 680.f;
             if (w > h) {
-                tf[6] = 40.f;
-                tf[7] = h - 40.f;
-                tf[9] = 1.f;
-                tf[10] = -((float)w / 2) - 0.25f;
-                tf[11] = -((float)h / 2) - 0.25f;
+                i.ScaleOffset.z = 40.f;
+                i.ScaleOffset.w = h - 40.f;
+                i.BendPos.y = 1.f;
             }
-
-            sRollo.mUniformAlloc.data(tf);
+            sRollo.mUniformAlloc.set(i, 0, true);
         }
 
         //long endTime = SystemClock.uptimeMillis();
@@ -307,18 +294,17 @@
         if (mArrowNavigation) {
             if (!hasWindowFocus) {
                 // Clear selection when we lose window focus
-                mLastSelectedIcon = sRollo.mState.selectedIconIndex;
+                mLastSelectedIcon = sRollo.mScript.get_gSelectedIconIndex();
                 sRollo.setHomeSelected(SELECTED_NONE);
                 sRollo.clearSelectedIcon();
-                sRollo.mState.save();
             } else {
-                if (sRollo.mState.iconCount > 0) {
+                if (sRollo.mScript.get_gIconCount() > 0) {
                     if (mLastSelection == SELECTION_ICONS) {
                         int selection = mLastSelectedIcon;
                         final int firstIcon = Math.round(sRollo.mScrollPos) * mColumnsPerPage;
                         if (selection < 0 || // No selection
                                 selection < firstIcon || // off the top of the screen
-                                selection >= sRollo.mState.iconCount || // past last icon
+                                selection >= sRollo.mScript.get_gIconCount() || // past last icon
                                 selection >= firstIcon + // past last icon on screen
                                     (mColumnsPerPage * mRowsPerPage)) {
                             selection = firstIcon;
@@ -326,10 +312,8 @@
 
                         // Select the first icon when we gain window focus
                         sRollo.selectIcon(selection, SELECTED_FOCUSED);
-                        sRollo.mState.save();
                     } else if (mLastSelection == SELECTION_HOME) {
                         sRollo.setHomeSelected(SELECTED_FOCUSED);
-                        sRollo.mState.save();
                     }
                 }
             }
@@ -356,7 +340,6 @@
                     // Clear selection when we lose focus
                     sRollo.clearSelectedIcon();
                     sRollo.setHomeSelected(SELECTED_NONE);
-                    sRollo.mState.save();
                     mArrowNavigation = false;
                 }
             } else {
@@ -366,11 +349,10 @@
     }
 
     private void gainFocus() {
-        if (!mArrowNavigation && sRollo.mState.iconCount > 0) {
+        if (!mArrowNavigation && sRollo.mScript.get_gIconCount() > 0) {
             // Select the first icon when we gain keyboard focus
             mArrowNavigation = true;
             sRollo.selectIcon(Math.round(sRollo.mScrollPos) * mColumnsPerPage, SELECTED_FOCUSED);
-            sRollo.mState.save();
         }
     }
 
@@ -382,7 +364,7 @@
         if (!isVisible()) {
             return false;
         }
-        final int iconCount = sRollo.mState.iconCount;
+        final int iconCount = sRollo.mScript.get_gIconCount();
 
         if (keyCode == KeyEvent.KEYCODE_DPAD_CENTER || keyCode == KeyEvent.KEYCODE_ENTER) {
             if (mArrowNavigation) {
@@ -390,7 +372,7 @@
                     reallyPlaySoundEffect(SoundEffectConstants.CLICK);
                     mLauncher.closeAllApps(true);
                 } else {
-                    int whichApp = sRollo.mState.selectedIconIndex;
+                    int whichApp = sRollo.mScript.get_gSelectedIconIndex();
                     if (whichApp >= 0) {
                         ApplicationInfo app = mAllAppsList.get(whichApp);
                         mLauncher.startActivitySafely(app.intent, app);
@@ -402,10 +384,10 @@
 
         if (iconCount > 0) {
             final boolean isPortrait = getWidth() < getHeight();
-            
+
             mArrowNavigation = true;
 
-            int currentSelection = sRollo.mState.selectedIconIndex;
+            int currentSelection = sRollo.mScript.get_gSelectedIconIndex();
             int currentTopRow = Math.round(sRollo.mScrollPos);
 
             // The column of the current selection, in the range 0..COLUMNS_PER_PAGE_PORTRAIT-1
@@ -511,7 +493,6 @@
             }
             if (newSelection != currentSelection) {
                 sRollo.selectIcon(newSelection, SELECTED_FOCUSED);
-                sRollo.mState.save();
             }
         }
         return handled;
@@ -611,7 +592,6 @@
                     (!isPortrait && x > mTouchXBorders[mTouchXBorders.length-1])) {
                 mTouchTracking = TRACKING_HOME;
                 sRollo.setHomeSelected(SELECTED_PRESSED);
-                sRollo.mState.save();
                 mCurrentIconIndex = -1;
             } else {
                 mTouchTracking = TRACKING_FLING;
@@ -619,9 +599,6 @@
                 mMotionDownRawX = (int)ev.getRawX();
                 mMotionDownRawY = (int)ev.getRawY();
 
-                sRollo.mState.newPositionX = ev.getRawY() / getHeight();
-                sRollo.mState.newTouchDown = 1;
-
                 if (!sRollo.checkClickOK()) {
                     sRollo.clearSelectedIcon();
                 } else {
@@ -632,8 +609,7 @@
                         cancelLongPress();
                     }
                 }
-                sRollo.mState.save();
-                sRollo.move();
+                sRollo.move(ev.getRawY() / getHeight());
                 mVelocityTracker = VelocityTracker.obtain();
                 mVelocityTracker.addMovement(ev);
                 mStartedScrolling = false;
@@ -646,7 +622,6 @@
                         y > mTouchYBorders[mTouchYBorders.length-1]) || (!isPortrait
                         && x > mTouchXBorders[mTouchXBorders.length-1])
                         ? SELECTED_PRESSED : SELECTED_NONE);
-                sRollo.mState.save();
             } else if (mTouchTracking == TRACKING_FLING) {
                 int rawY = (int)ev.getRawY();
                 int slop;
@@ -667,14 +642,11 @@
                         cancelLongPress();
                         mCurrentIconIndex = -1;
                     }
-                    sRollo.mState.newPositionX = ev.getRawY() / getHeight();
-                    sRollo.mState.newTouchDown = 1;
-                    sRollo.move();
+                    sRollo.move(ev.getRawY() / getHeight());
 
                     mStartedScrolling = true;
                     sRollo.clearSelectedIcon();
                     mVelocityTracker.addMovement(ev);
-                    sRollo.mState.save();
                 }
             }
             break;
@@ -688,18 +660,13 @@
                         mLauncher.closeAllApps(true);
                     }
                     sRollo.setHomeSelected(SELECTED_NONE);
-                    sRollo.mState.save();
                 }
                 mCurrentIconIndex = -1;
             } else if (mTouchTracking == TRACKING_FLING) {
-                sRollo.mState.newTouchDown = 0;
-                sRollo.mState.newPositionX = ev.getRawY() / getHeight();
-
                 mVelocityTracker.computeCurrentVelocity(1000 /* px/sec */, mMaxFlingVelocity);
-                sRollo.mState.flingVelocity = mVelocityTracker.getYVelocity() / getHeight();
                 sRollo.clearSelectedIcon();
-                sRollo.mState.save();
-                sRollo.fling();
+                sRollo.fling(ev.getRawY() / getHeight(),
+                             mVelocityTracker.getYVelocity() / getHeight());
 
                 if (mVelocityTracker != null) {
                     mVelocityTracker.recycle();
@@ -761,7 +728,7 @@
             int pos = -1;
             switch (mLastSelection) {
             case SELECTION_ICONS:
-                index = sRollo.mState.selectedIconIndex;
+                index = sRollo.mScript.get_gSelectedIconIndex();
                 if (index >= 0) {
                     ApplicationInfo info = mAllAppsList.get(index);
                     if (info.title != null) {
@@ -853,13 +820,12 @@
         if (sRollo != null && reload) {
             sRollo.setApps(list);
         }
-        
+
         if (hasFocus() && mRestoreFocusIndex != -1) {
             sRollo.selectIcon(mRestoreFocusIndex, SELECTED_FOCUSED);
-            sRollo.mState.save();
             mRestoreFocusIndex = -1;
         }
-        
+
         mLocks &= ~LOCK_ICONS_PENDING;
     }
 
@@ -876,7 +842,7 @@
         final int N = list.size();
         if (sRollo != null) {
             sRollo.pause();
-            sRollo.reallocAppsList(sRollo.mState.iconCount + N);
+            sRollo.reallocAppsList(sRollo.mScript.get_gIconCount() + N);
         }
 
         for (int i=0; i<N; i++) {
@@ -946,17 +912,6 @@
         return -1;
     }
 
-    /*
-    private static int countPages(int iconCount) {
-        int iconsPerPage = getColumnsCount() * Defines.ROWS_PER_PAGE_PORTRAIT;
-        int pages = iconCount / iconsPerPage;
-        if (pages*iconsPerPage != iconCount) {
-            pages++;
-        }
-        return pages;
-    }
-    */
-
     class AAMessage extends RenderScript.RSMessage {
         public void run() {
             sRollo.mScrollPos = ((float)mData[0]) / (1 << 16);
@@ -988,23 +943,12 @@
         private int mHeight;
 
         private Resources mRes;
-        private Script mScript;
-        private Script.Invokable mInvokeMove;
-        private Script.Invokable mInvokeMoveTo;
-        private Script.Invokable mInvokeFling;
-        private Script.Invokable mInvokeResetWAR;
-        private Script.Invokable mInvokeSetZoom;
+        ScriptC_Allapps mScript;
 
-        private ProgramStore mPSIcons;
-        private ProgramFragment mPFTexMip;
-        private ProgramFragment mPFTexMipAlpha;
-        private ProgramFragment mPFTexNearest;
-        private ProgramVertex mPV;
-        private ProgramVertex mPVCurve;
-        private SimpleMesh mMesh;
+        private Mesh mMesh;
         private ProgramVertex.MatrixAllocation mPVA;
 
-        private Allocation mUniformAlloc;
+        private ScriptField_VpConsts mUniformAlloc;
 
         private Allocation mHomeButtonNormal;
         private Allocation mHomeButtonFocused;
@@ -1017,15 +961,11 @@
         private Allocation[] mLabels;
         private int[] mLabelIds;
         private Allocation mAllocLabelIds;
-        private Allocation mSelectedIcon;
 
         private Bitmap mSelectionBitmap;
         private Canvas mSelectionCanvas;
-        
-        private float mScrollPos;        
 
-        Params mParams;
-        State mState;
+        private float mScrollPos;
 
         AllApps3D mAllApps;
         boolean mInitialize;
@@ -1056,41 +996,6 @@
             }
         }
 
-        class Params extends BaseAlloc {
-            Params() {
-                mType = Type.createFromClass(sRS, Params.class, 1, "ParamsClass");
-                mAlloc = Allocation.createTyped(sRS, mType);
-                save();
-            }
-            public int bubbleWidth;
-            public int bubbleHeight;
-            public int bubbleBitmapWidth;
-            public int bubbleBitmapHeight;
-
-            public int homeButtonWidth;
-            public int homeButtonHeight;
-            public int homeButtonTextureWidth;
-            public int homeButtonTextureHeight;
-        }
-
-        class State extends BaseAlloc {
-            public float newPositionX;
-            public int newTouchDown;
-            public float flingVelocity;
-            public int iconCount;
-            public int selectedIconIndex = -1;
-            public int selectedIconTexture;
-            public float zoomTarget;
-            public int homeButtonId;
-            public float targetPos;
-
-            State() {
-                mType = Type.createFromClass(sRS, State.class, 1, "StateClass");
-                mAlloc = Allocation.createTyped(sRS, mType);
-                save();
-            }
-        }
-
         public RolloRS(AllApps3D allApps) {
             mAllApps = allApps;
         }
@@ -1099,16 +1004,21 @@
             mRes = res;
             mWidth = width;
             mHeight = height;
+            mScript = new ScriptC_Allapps(sRS, mRes, R.raw.allapps, true);
+
             initProgramVertex();
             initProgramFragment();
             initProgramStore();
             initGl();
             initData();
-            initRs();
+
+            mScript.bind_gIconIDs(mAllocIconIds);
+            mScript.bind_gLabelIDs(mAllocLabelIds);
+            sRS.contextBindRootScript(mScript);
         }
 
         public void initMesh() {
-            SimpleMesh.TriangleMeshBuilder tm = new SimpleMesh.TriangleMeshBuilder(sRS, 2, 0);
+            Mesh.TriangleMeshBuilder tm = new Mesh.TriangleMeshBuilder(sRS, 2, 0);
 
             for (int ct=0; ct < 16; ct++) {
                 float pos = (1.f / (16.f - 1)) * ct;
@@ -1119,8 +1029,8 @@
                 tm.addTriangle(ct, ct+1, ct+2);
                 tm.addTriangle(ct+1, ct+3, ct+2);
             }
-            mMesh = tm.create();
-            mMesh.setName("SMCell");
+            mMesh = tm.create(true);
+            mScript.set_gSMCell(mMesh);
         }
 
         void resize(int w, int h) {
@@ -1135,18 +1045,12 @@
 
             ProgramVertex.Builder pvb = new ProgramVertex.Builder(sRS, null, null);
             pvb.setTextureMatrixEnable(true);
-            mPV = pvb.create();
-            mPV.setName("PV");
-            mPV.bindAllocation(mPVA);
+            ProgramVertex pv = pvb.create();
+            pv.bindAllocation(mPVA);
+            sRS.contextBindProgramVertex(pv);
 
-            Element.Builder eb = new Element.Builder(sRS);
-            eb.add(Element.createVector(sRS, Element.DataType.FLOAT_32, 2), "ImgSize");
-            eb.add(Element.createVector(sRS, Element.DataType.FLOAT_32, 4), "Position");
-            eb.add(Element.createVector(sRS, Element.DataType.FLOAT_32, 2), "BendPos");
-            eb.add(Element.createVector(sRS, Element.DataType.FLOAT_32, 4), "ScaleOffset");
-            Element e = eb.create();
-
-            mUniformAlloc = Allocation.createSized(sRS, e, 1);
+            mUniformAlloc = new ScriptField_VpConsts(sRS, 1);
+            mScript.bind_vpConstants(mUniformAlloc);
 
             initMesh();
             ProgramVertex.ShaderBuilder sb = new ProgramVertex.ShaderBuilder(sRS);
@@ -1208,13 +1112,12 @@
                     "}\n";
             sb.setShader(t);
             sb.addConstant(mUniformAlloc.getType());
-            sb.addInput(mMesh.getVertexType(0).getElement());
-            mPVCurve = sb.create();
-            mPVCurve.setName("PVCurve");
-            mPVCurve.bindAllocation(mPVA);
-            mPVCurve.bindConstants(mUniformAlloc, 1);
+            sb.addInput(mMesh.getVertexAllocation(0).getType().getElement());
+            ProgramVertex pvc = sb.create();
+            pvc.bindAllocation(mPVA);
+            pvc.bindConstants(mUniformAlloc.getAllocation(), 1);
 
-            sRS.contextBindProgramVertex(mPV);
+            mScript.set_gPVCurve(pvc);
         }
 
         private void initProgramFragment() {
@@ -1232,20 +1135,20 @@
             ProgramFragment.Builder bf = new ProgramFragment.Builder(sRS);
             bf.setTexture(ProgramFragment.Builder.EnvMode.MODULATE,
                           ProgramFragment.Builder.Format.RGBA, 0);
-            mPFTexMip = bf.create();
-            mPFTexMip.setName("PFTexMip");
-            mPFTexMip.bindSampler(linear, 0);
+            ProgramFragment pfTexMip = bf.create();
+            pfTexMip.bindSampler(linear, 0);
 
-            mPFTexNearest = bf.create();
-            mPFTexNearest.setName("PFTexNearest");
-            mPFTexNearest.bindSampler(nearest, 0);
+            ProgramFragment pfTexNearest = bf.create();
+            pfTexNearest.bindSampler(nearest, 0);
 
             bf.setTexture(ProgramFragment.Builder.EnvMode.MODULATE,
                           ProgramFragment.Builder.Format.ALPHA, 0);
-            mPFTexMipAlpha = bf.create();
-            mPFTexMipAlpha.setName("PFTexMipAlpha");
-            mPFTexMipAlpha.bindSampler(linear, 0);
+            ProgramFragment pfTexMipAlpha = bf.create();
+            pfTexMipAlpha.bindSampler(linear, 0);
 
+            mScript.set_gPFTexNearest(pfTexNearest);
+            mScript.set_gPFTexMip(pfTexMip);
+            mScript.set_gPFTexMipAlpha(pfTexMipAlpha);
         }
 
         private void initProgramStore() {
@@ -1255,23 +1158,17 @@
             bs.setDitherEnable(true);
             bs.setBlendFunc(ProgramStore.BlendSrcFunc.SRC_ALPHA,
                             ProgramStore.BlendDstFunc.ONE_MINUS_SRC_ALPHA);
-            mPSIcons = bs.create();
-            mPSIcons.setName("PSIcons");
+            mScript.set_gPS(bs.create());
         }
 
         private void initGl() {
         }
 
         private void initData() {
-            mParams = new Params();
-            mState = new State();
-
-            final Utilities.BubbleText bubble = new Utilities.BubbleText(mAllApps.getContext());
-
-            mParams.bubbleWidth = bubble.getBubbleWidth();
-            mParams.bubbleHeight = bubble.getMaxBubbleHeight();
-            mParams.bubbleBitmapWidth = bubble.getBitmapWidth();
-            mParams.bubbleBitmapHeight = bubble.getBitmapHeight();
+            mScript.set_COLUMNS_PER_PAGE_PORTRAIT(Defines.COLUMNS_PER_PAGE_PORTRAIT);
+            mScript.set_ROWS_PER_PAGE_PORTRAIT(Defines.ROWS_PER_PAGE_PORTRAIT);
+            mScript.set_COLUMNS_PER_PAGE_LANDSCAPE(Defines.COLUMNS_PER_PAGE_LANDSCAPE);
+            mScript.set_ROWS_PER_PAGE_LANDSCAPE(Defines.ROWS_PER_PAGE_LANDSCAPE);
 
             mHomeButtonNormal = Allocation.createFromBitmapResource(sRS, mRes,
                     R.drawable.home_button_normal, Element.RGBA_8888(sRS), false);
@@ -1282,15 +1179,8 @@
             mHomeButtonPressed = Allocation.createFromBitmapResource(sRS, mRes,
                     R.drawable.home_button_pressed, Element.RGBA_8888(sRS), false);
             mHomeButtonPressed.uploadToTexture(0);
-            mParams.homeButtonWidth = 76;
-            mParams.homeButtonHeight = 68;
-            mParams.homeButtonTextureWidth = 128;
-            mParams.homeButtonTextureHeight = 128;
 
-            mState.homeButtonId = mHomeButtonNormal.getID();
-
-            mParams.save();
-            mState.save();
+            mScript.set_gHomeButton(mHomeButtonNormal);
 
             mSelectionBitmap = Bitmap.createBitmap(Defines.SELECTION_TEXTURE_WIDTH_PX,
                     Defines.SELECTION_TEXTURE_HEIGHT_PX, Bitmap.Config.ARGB_8888);
@@ -1299,30 +1189,6 @@
             setApps(null);
         }
 
-        private void initRs() {
-            ScriptC.Builder sb = new ScriptC.Builder(sRS);
-            sb.setScript(mRes, R.raw.allapps);
-            sb.setRoot(true);
-            sb.addDefines(mAllApps.mDefines);
-            sb.setType(mParams.mType, "params", Defines.ALLOC_PARAMS);
-            sb.setType(mState.mType, "state", Defines.ALLOC_STATE);
-            sb.setType(mUniformAlloc.getType(), "vpConstants", Defines.ALLOC_VP_CONSTANTS);
-            mInvokeMove = sb.addInvokable("move");
-            mInvokeFling = sb.addInvokable("fling");
-            mInvokeMoveTo = sb.addInvokable("moveTo");
-            mInvokeResetWAR = sb.addInvokable("resetHWWar");
-            mInvokeSetZoom = sb.addInvokable("setZoom");
-            mScript = sb.create();
-            mScript.setClearColor(0.0f, 0.0f, 0.0f, 0.0f);
-            mScript.bindAllocation(mParams.mAlloc, Defines.ALLOC_PARAMS);
-            mScript.bindAllocation(mState.mAlloc, Defines.ALLOC_STATE);
-            mScript.bindAllocation(mAllocIconIds, Defines.ALLOC_ICON_IDS);
-            mScript.bindAllocation(mAllocLabelIds, Defines.ALLOC_LABEL_IDS);
-            mScript.bindAllocation(mUniformAlloc, Defines.ALLOC_VP_CONSTANTS);
-
-            sRS.contextBindRootScript(mScript);
-        }
-
         void dirtyCheck() {
             if (sZoomDirty) {
                 setZoom(mAllApps.sNextZoom, mAllApps.sAnimateNextZoom);
@@ -1340,20 +1206,21 @@
 
             mIcons = new Allocation[count];
             mIconIds = new int[allocCount];
-            mAllocIconIds = Allocation.createSized(sRS, Element.USER_I32(sRS), allocCount);
+            mAllocIconIds = Allocation.createSized(sRS, Element.I32(sRS), allocCount);
 
             mLabels = new Allocation[count];
             mLabelIds = new int[allocCount];
-            mAllocLabelIds = Allocation.createSized(sRS, Element.USER_I32(sRS), allocCount);
+            mAllocLabelIds = Allocation.createSized(sRS, Element.I32(sRS), allocCount);
 
-            mState.iconCount = count;
-            for (int i=0; i < mState.iconCount; i++) {
+            mScript.set_gIconCount(count);
+            for (int i=0; i < count; i++) {
                 createAppIconAllocations(i, list.get(i));
             }
-            for (int i=0; i < mState.iconCount; i++) {
+            for (int i=0; i < count; i++) {
                 uploadAppIcon(i, list.get(i));
             }
             saveAppsList();
+            android.util.Log.e("rs", "setApps");
             sRollo.resume();
         }
 
@@ -1362,15 +1229,7 @@
                 sRollo.clearSelectedIcon();
                 sRollo.setHomeSelected(SELECTED_NONE);
             }
-            if (zoom > 0.001f) {
-                sRollo.mState.zoomTarget = zoom;
-            } else {
-                sRollo.mState.zoomTarget = 0;
-            }
-            sRollo.mState.save();
-            if (!animate) {
-                sRollo.mInvokeSetZoom.execute();
-            }
+            sRollo.mScript.invoke_setZoom(zoom, animate ? 1 : 0);
         }
 
         private void createAppIconAllocations(int index, ApplicationInfo item) {
@@ -1400,13 +1259,13 @@
         private void reallocAppsList(int count) {
             Allocation[] icons = new Allocation[count];
             int[] iconIds = new int[count];
-            mAllocIconIds = Allocation.createSized(sRS, Element.USER_I32(sRS), count);
+            mAllocIconIds = Allocation.createSized(sRS, Element.I32(sRS), count);
 
             Allocation[] labels = new Allocation[count];
             int[] labelIds = new int[count];
-            mAllocLabelIds = Allocation.createSized(sRS, Element.USER_I32(sRS), count);
+            mAllocLabelIds = Allocation.createSized(sRS, Element.I32(sRS), count);
 
-            final int oldCount = sRollo.mState.iconCount;
+            final int oldCount = sRollo.mScript.get_gIconCount();
 
             System.arraycopy(mIcons, 0, icons, 0, oldCount);
             System.arraycopy(mIconIds, 0, iconIds, 0, oldCount);
@@ -1423,7 +1282,7 @@
          * Handle the allocations for the new app.  Make sure you call saveAppsList when done.
          */
         private void addApp(int index, ApplicationInfo item) {
-            final int count = mState.iconCount - index;
+            final int count = mScript.get_gIconCount() - index;
             final int dest = index + 1;
 
             System.arraycopy(mIcons, index, mIcons, dest, count);
@@ -1433,14 +1292,15 @@
 
             createAppIconAllocations(index, item);
             uploadAppIcon(index, item);
-            sRollo.mState.iconCount++;
+
+            mScript.set_gIconCount(mScript.get_gIconCount() + 1);
         }
 
         /**
          * Handle the allocations for the removed app.  Make sure you call saveAppsList when done.
          */
         private void removeApp(int index) {
-            final int count = mState.iconCount - index - 1;
+            final int count = mScript.get_gIconCount() - index - 1;
             final int src = index + 1;
 
             System.arraycopy(mIcons, src, mIcons, index, count);
@@ -1448,8 +1308,8 @@
             System.arraycopy(mLabels, src, mLabels, index, count);
             System.arraycopy(mLabelIds, src, mLabelIds, index, count);
 
-            sRollo.mState.iconCount--;
-            final int last = mState.iconCount;
+            mScript.set_gIconCount(mScript.get_gIconCount() - 1);
+            final int last = mScript.get_gIconCount();
 
             mIcons[last] = null;
             mIconIds[last] = 0;
@@ -1466,31 +1326,21 @@
                 mAllocIconIds.data(mIconIds);
                 mAllocLabelIds.data(mLabelIds);
 
-                mScript.bindAllocation(mAllocIconIds, Defines.ALLOC_ICON_IDS);
-                mScript.bindAllocation(mAllocLabelIds, Defines.ALLOC_LABEL_IDS);
-
-                mState.save();
-
-                // Note: mScript may be null if we haven't initialized it yet.
-                // In that case, this is a no-op.
-                if (mInvokeResetWAR != null) {
-                    mInvokeResetWAR.execute();
-                }
+                mScript.bind_gIconIDs(mAllocIconIds);
+                mScript.bind_gLabelIDs(mAllocLabelIds);
             }
         }
 
-        void fling() {
-            mInvokeFling.execute();
+        void fling(float pos, float v) {
+            mScript.invoke_fling(pos, v);
         }
 
-        void move() {
-            mInvokeMove.execute();
+        void move(float pos) {
+            mScript.invoke_move(pos);
         }
 
         void moveTo(float row) {
-            mState.targetPos = row;
-            mState.save();
-            mInvokeMoveTo.execute();
+            mScript.invoke_moveTo(row);
         }
 
         /**
@@ -1520,7 +1370,7 @@
                 if (mAllApps != null) {
                     mAllApps.mRestoreFocusIndex = index;
                 }
-                mState.selectedIconIndex = -1;
+                mScript.set_gSelectedIconIndex(-1);
                 if (mAllApps.mLastSelection == SELECTION_ICONS) {
                     mAllApps.mLastSelection = SELECTION_NONE;
                 }
@@ -1529,8 +1379,8 @@
                     mAllApps.mLastSelection = SELECTION_ICONS;
                 }
 
-                int prev = mState.selectedIconIndex;
-                mState.selectedIconIndex = index;
+                int prev = mScript.get_gSelectedIconIndex();
+                mScript.set_gSelectedIconIndex(index);
 
                 ApplicationInfo info = appsList.get(index);
                 Bitmap selectionBitmap = mSelectionBitmap;
@@ -1539,10 +1389,10 @@
                         selectionBitmap.getWidth(), selectionBitmap.getHeight(),
                         pressed == SELECTED_PRESSED, info.iconBitmap);
 
-                mSelectedIcon = Allocation.createFromBitmap(sRS, selectionBitmap,
+                Allocation si = Allocation.createFromBitmap(sRS, selectionBitmap,
                         Element.RGBA_8888(sRS), false);
-                mSelectedIcon.uploadToTexture(0);
-                mState.selectedIconTexture = mSelectedIcon.getID();
+                si.uploadToTexture(0);
+                mScript.set_gSelectedIconTexture(si);
 
                 if (prev != index) {
                     if (info.title != null && info.title.length() > 0) {
@@ -1557,24 +1407,24 @@
          * You need to call save() on mState on your own after calling this.
          */
         void clearSelectedIcon() {
-            mState.selectedIconIndex = -1;
+            mScript.set_gSelectedIconIndex(-1);
         }
 
         void setHomeSelected(int mode) {
             final int prev = mAllApps.mLastSelection;
             switch (mode) {
             case SELECTED_NONE:
-                mState.homeButtonId = mHomeButtonNormal.getID();
+                mScript.set_gHomeButton(mHomeButtonNormal);
                 break;
             case SELECTED_FOCUSED:
                 mAllApps.mLastSelection = SELECTION_HOME;
-                mState.homeButtonId = mHomeButtonFocused.getID();
+                mScript.set_gHomeButton(mHomeButtonFocused);
                 if (prev != SELECTION_HOME) {
                     mAllApps.sendAccessibilityEvent(AccessibilityEvent.TYPE_VIEW_SELECTED);
                 }
                 break;
             case SELECTED_PRESSED:
-                mState.homeButtonId = mHomeButtonPressed.getID();
+                mScript.set_gHomeButton(mHomeButtonPressed);
                 break;
             }
         }
@@ -1594,23 +1444,15 @@
                 Log.d(TAG, "sRollo.mLabelIds.length=" + mLabelIds.length);
             }
             Log.d(TAG, "sRollo.mLabelIds=" +  Arrays.toString(mLabelIds));
-            Log.d(TAG, "sRollo.mState.newPositionX=" + mState.newPositionX);
-            Log.d(TAG, "sRollo.mState.newTouchDown=" + mState.newTouchDown);
-            Log.d(TAG, "sRollo.mState.flingVelocity=" + mState.flingVelocity);
-            Log.d(TAG, "sRollo.mState.iconCount=" + mState.iconCount);
-            Log.d(TAG, "sRollo.mState.selectedIconIndex=" + mState.selectedIconIndex);
-            Log.d(TAG, "sRollo.mState.selectedIconTexture=" + mState.selectedIconTexture);
-            Log.d(TAG, "sRollo.mState.zoomTarget=" + mState.zoomTarget);
-            Log.d(TAG, "sRollo.mState.homeButtonId=" + mState.homeButtonId);
-            Log.d(TAG, "sRollo.mState.targetPos=" + mState.targetPos);
-            Log.d(TAG, "sRollo.mParams.bubbleWidth=" + mParams.bubbleWidth);
-            Log.d(TAG, "sRollo.mParams.bubbleHeight=" + mParams.bubbleHeight);
-            Log.d(TAG, "sRollo.mParams.bubbleBitmapWidth=" + mParams.bubbleBitmapWidth);
-            Log.d(TAG, "sRollo.mParams.bubbleBitmapHeight=" + mParams.bubbleBitmapHeight);
-            Log.d(TAG, "sRollo.mParams.homeButtonWidth=" + mParams.homeButtonWidth);
-            Log.d(TAG, "sRollo.mParams.homeButtonHeight=" + mParams.homeButtonHeight);
-            Log.d(TAG, "sRollo.mParams.homeButtonTextureWidth=" + mParams.homeButtonTextureWidth);
-            Log.d(TAG, "sRollo.mParams.homeButtonTextureHeight=" + mParams.homeButtonTextureHeight);
+            //Log.d(TAG, "sRollo.mState.newPositionX=" + mState.newPositionX);
+            //Log.d(TAG, "sRollo.mState.newTouchDown=" + mState.newTouchDown);
+            //Log.d(TAG, "sRollo.mState.flingVelocity=" + mState.flingVelocity);
+            //Log.d(TAG, "sRollo.mState.iconCount=" + mState.iconCount);
+            //Log.d(TAG, "sRollo.mState.selectedIconIndex=" + mState.selectedIconIndex);
+            //Log.d(TAG, "sRollo.mState.selectedIconTexture=" + mState.selectedIconTexture);
+            //Log.d(TAG, "sRollo.mState.zoomTarget=" + mState.zoomTarget);
+            //Log.d(TAG, "sRollo.mState.homeButtonId=" + mState.homeButtonId);
+            //Log.d(TAG, "sRollo.mState.targetPos=" + mState.targetPos);
         }
     }
 
@@ -1641,5 +1483,3 @@
         }
     }
 }
-
-
diff --git a/src/com/android/launcher2/AllAppsList.java b/src/com/android/launcher2/AllAppsList.java
index 3a5baea..e5d8782 100644
--- a/src/com/android/launcher2/AllAppsList.java
+++ b/src/com/android/launcher2/AllAppsList.java
@@ -16,17 +16,16 @@
 
 package com.android.launcher2;
 
+import java.util.ArrayList;
+import java.util.List;
+
 import android.content.ComponentName;
-import android.content.Intent;
 import android.content.Context;
+import android.content.Intent;
 import android.content.pm.ActivityInfo;
 import android.content.pm.PackageManager;
 import android.content.pm.ResolveInfo;
 
-import java.util.ArrayList;
-import java.util.Collections;
-import java.util.List;
-
 
 /**
  * Stores the list of all applications for the all apps view.
diff --git a/src/com/android/launcher2/AllAppsTabbed.java b/src/com/android/launcher2/AllAppsTabbed.java
new file mode 100644
index 0000000..67293d9
--- /dev/null
+++ b/src/com/android/launcher2/AllAppsTabbed.java
@@ -0,0 +1,124 @@
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.launcher2;
+
+import com.android.launcher.R;
+
+import android.content.Context;
+import android.content.res.Resources;
+import android.util.AttributeSet;
+import android.util.Log;
+import android.view.View;
+import android.widget.TabHost;
+
+import java.util.ArrayList;
+
+/**
+ * Implements a tabbed version of AllApps2D.
+ */
+public class AllAppsTabbed extends TabHost implements AllAppsView {
+
+    private static final String TAG = "Launcher.AllAppsTabbed";
+
+    private AllAppsView mAllApps2D;
+
+    public AllAppsTabbed(Context context, AttributeSet attrs) {
+        super(context, attrs);
+    }
+
+    @Override
+    protected void onFinishInflate() {
+        try {
+            mAllApps2D = (AllAppsView)findViewById(R.id.all_apps_2d);
+            if (mAllApps2D == null) throw new Resources.NotFoundException();
+        } catch (Resources.NotFoundException e) {
+            Log.e(TAG, "Can't find necessary layout elements for AllAppsTabbed");
+        }
+        setup();
+
+        // This lets us share the same view between all tabs
+        TabContentFactory contentFactory = new TabContentFactory() {
+            public View createTabContent(String tag) {
+                return (View)mAllApps2D;
+            }
+        };
+
+        // TODO: Make these tabs show the appropriate content (they're no-ops for now)
+        addTab(newTabSpec("apps").setIndicator("All").setContent(contentFactory));
+        addTab(newTabSpec("apps").setIndicator("Apps").setContent(contentFactory));
+        addTab(newTabSpec("apps").setIndicator("Games").setContent(contentFactory));
+        addTab(newTabSpec("apps").setIndicator("Downloaded").setContent(contentFactory));
+
+        setCurrentTab(0);
+        setVisibility(GONE);
+    }
+
+    @Override
+    public void setLauncher(Launcher launcher) {
+        mAllApps2D.setLauncher(launcher);
+    }
+
+    @Override
+    public void setDragController(DragController dragger) {
+        mAllApps2D.setDragController(dragger);
+    }
+
+    @Override
+    public void zoom(float zoom, boolean animate) {
+        // NOTE: animate parameter is ignored for the TabHost itself
+        setVisibility((zoom == 0.0f) ? View.GONE : View.VISIBLE);
+        mAllApps2D.zoom(zoom, animate);
+        bringChildToFront((View)mAllApps2D);
+        getParent().bringChildToFront(this);
+    }
+
+    @Override
+    public boolean isVisible() {
+        return mAllApps2D.isVisible();
+    }
+
+    @Override
+    public void setApps(ArrayList<ApplicationInfo> list) {
+        mAllApps2D.setApps(list);
+    }
+
+    @Override
+    public void addApps(ArrayList<ApplicationInfo> list) {
+        mAllApps2D.addApps(list);
+    }
+
+    @Override
+    public void removeApps(ArrayList<ApplicationInfo> list) {
+        mAllApps2D.removeApps(list);
+    }
+
+    @Override
+    public void updateApps(ArrayList<ApplicationInfo> list) {
+        mAllApps2D.updateApps(list);
+    }
+
+    @Override
+    public void dumpState() {
+        mAllApps2D.dumpState();
+    }
+
+    @Override
+    public void surrender() {
+        mAllApps2D.surrender();
+    }
+
+}
diff --git a/src/com/android/launcher2/ApplicationInfo.java b/src/com/android/launcher2/ApplicationInfo.java
index 5bb5037..7b00f4f 100644
--- a/src/com/android/launcher2/ApplicationInfo.java
+++ b/src/com/android/launcher2/ApplicationInfo.java
@@ -16,17 +16,14 @@
 
 package com.android.launcher2;
 
+import java.util.ArrayList;
+
 import android.content.ComponentName;
-import android.content.ContentValues;
-import android.content.Context;
 import android.content.Intent;
 import android.content.pm.ResolveInfo;
 import android.graphics.Bitmap;
-import android.graphics.drawable.Drawable;
 import android.util.Log;
 
-import java.util.ArrayList;
-
 /**
  * Represents an app in AllAppsView.
  */
diff --git a/src/com/android/launcher2/CellLayout.java b/src/com/android/launcher2/CellLayout.java
index 9d39c2c..7ca549e 100644
--- a/src/com/android/launcher2/CellLayout.java
+++ b/src/com/android/launcher2/CellLayout.java
@@ -16,36 +16,46 @@
 
 package com.android.launcher2;
 
+import com.android.launcher.R;
+
+import android.app.WallpaperManager;
 import android.content.Context;
-import android.content.res.TypedArray;
 import android.content.res.Resources;
+import android.content.res.TypedArray;
+import android.graphics.Canvas;
 import android.graphics.Rect;
 import android.graphics.RectF;
-import android.graphics.Canvas;
+import android.graphics.drawable.Drawable;
 import android.util.AttributeSet;
 import android.view.ContextMenu;
 import android.view.MotionEvent;
 import android.view.View;
 import android.view.ViewDebug;
 import android.view.ViewGroup;
-import android.app.WallpaperManager;
+import android.view.animation.Animation;
+import android.view.animation.LayoutAnimationController;
 
 import java.util.ArrayList;
-
-import com.android.launcher.R;
+import java.util.Arrays;
 
 public class CellLayout extends ViewGroup {
+    static final String TAG = "CellLayout";
+
     private boolean mPortrait;
 
     private int mCellWidth;
     private int mCellHeight;
-    
+
     private int mLongAxisStartPadding;
     private int mLongAxisEndPadding;
-
     private int mShortAxisStartPadding;
     private int mShortAxisEndPadding;
 
+    private int mLeftPadding;
+    private int mRightPadding;
+    private int mTopPadding;
+    private int mBottomPadding;
+
     private int mShortAxisCells;
     private int mLongAxisCells;
 
@@ -53,17 +63,33 @@
     private int mHeightGap;
 
     private final Rect mRect = new Rect();
+    private final RectF mRectF = new RectF();
     private final CellInfo mCellInfo = new CellInfo();
-    
-    int[] mCellXY = new int[2];
+
+    // This is a temporary variable to prevent having to allocate a new object just to
+    // return an (x, y) value from helper functions. Do NOT use it to maintain other state.
+    private final int[] mTmpCellXY = new int[2];
+
     boolean[][] mOccupied;
 
-    private RectF mDragRect = new RectF();
+    private final RectF mDragRect = new RectF();
+
+    // When dragging, used to indicate a vacant drop location
+    private Drawable mVacantDrawable;
+
+    // When dragging, used to indicate an occupied drop location
+    private Drawable mOccupiedDrawable;
+
+    // Updated to point to mVacantDrawable or mOccupiedDrawable, as appropriate
+    private Drawable mDragRectDrawable;
+
+    // When a drag operation is in progress, holds the nearest cell to the touch point
+    private final int[] mDragCell = new int[2];
 
     private boolean mDirtyTag;
     private boolean mLastDownOnOccupiedCell = false;
-    
-    private final WallpaperManager mWallpaperManager;     
+
+    private final WallpaperManager mWallpaperManager;
 
     public CellLayout(Context context) {
         this(context, null);
@@ -75,20 +101,27 @@
 
     public CellLayout(Context context, AttributeSet attrs, int defStyle) {
         super(context, attrs, defStyle);
+
+        // A ViewGroup usually does not draw, but CellLayout needs to draw a rectangle to show
+        // the user where a dragged item will land when dropped.
+        setWillNotDraw(false);
+        mVacantDrawable = getResources().getDrawable(R.drawable.rounded_rect_green);
+        mOccupiedDrawable = getResources().getDrawable(R.drawable.rounded_rect_red);
+
         TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.CellLayout, defStyle, 0);
 
         mCellWidth = a.getDimensionPixelSize(R.styleable.CellLayout_cellWidth, 10);
         mCellHeight = a.getDimensionPixelSize(R.styleable.CellLayout_cellHeight, 10);
-        
-        mLongAxisStartPadding = 
+
+        mLongAxisStartPadding =
             a.getDimensionPixelSize(R.styleable.CellLayout_longAxisStartPadding, 10);
-        mLongAxisEndPadding = 
+        mLongAxisEndPadding =
             a.getDimensionPixelSize(R.styleable.CellLayout_longAxisEndPadding, 10);
         mShortAxisStartPadding =
             a.getDimensionPixelSize(R.styleable.CellLayout_shortAxisStartPadding, 10);
-        mShortAxisEndPadding = 
+        mShortAxisEndPadding =
             a.getDimensionPixelSize(R.styleable.CellLayout_shortAxisEndPadding, 10);
-        
+
         mShortAxisCells = a.getInt(R.styleable.CellLayout_shortAxisCells, 4);
         mLongAxisCells = a.getInt(R.styleable.CellLayout_longAxisCells, 4);
 
@@ -96,14 +129,6 @@
 
         setAlwaysDrawnWithCacheEnabled(false);
 
-        if (mOccupied == null) {
-            if (mPortrait) {
-                mOccupied = new boolean[mShortAxisCells][mLongAxisCells];
-            } else {
-                mOccupied = new boolean[mLongAxisCells][mShortAxisCells];
-            }
-        }
-        
         mWallpaperManager = WallpaperManager.getInstance(getContext());
     }
 
@@ -113,6 +138,18 @@
     }
 
     @Override
+    protected void onDraw(Canvas canvas) {
+        if (!mDragRect.isEmpty()) {
+            mDragRectDrawable.setBounds(
+                    (int)mDragRect.left,
+                    (int)mDragRect.top,
+                    (int)mDragRect.right,
+                    (int)mDragRect.bottom);
+            mDragRectDrawable.draw(canvas);
+        }
+    }
+
+    @Override
     public void cancelLongPress() {
         super.cancelLongPress();
 
@@ -132,14 +169,24 @@
         return mPortrait ? mLongAxisCells : mShortAxisCells;
     }
 
-    @Override
-    public void addView(View child, int index, ViewGroup.LayoutParams params) {
+    // Takes canonical layout parameters
+    public boolean addViewToCellLayout(View child, int index, int childId, LayoutParams params) {
+        final LayoutParams lp = params;
+
         // Generate an id for each view, this assumes we have at most 256x256 cells
         // per workspace screen
-        final LayoutParams cellParams = (LayoutParams) params;
-        cellParams.regenerateId = true;
+        if (lp.cellX >= 0 && lp.cellX <= getCountX() - 1 && lp.cellY >= 0 && lp.cellY <= getCountY() - 1) {
+            // If the horizontal or vertical span is set to -1, it is taken to
+            // mean that it spans the extent of the CellLayout
+            if (lp.cellHSpan < 0) lp.cellHSpan = getCountX();
+            if (lp.cellVSpan < 0) lp.cellVSpan = getCountY();
 
-        super.addView(child, index, params);
+            child.setId(childId);
+
+            addView(child, index, lp);
+            return true;
+        }
+        return false;
     }
 
     @Override
@@ -158,67 +205,73 @@
         mCellInfo.screen = ((ViewGroup) getParent()).indexOfChild(this);
     }
 
+    public void setTagToCellInfoForPoint(int touchX, int touchY) {
+        final CellInfo cellInfo = mCellInfo;
+        final Rect frame = mRect;
+        final int x = touchX + mScrollX;
+        final int y = touchY + mScrollY;
+        final int count = getChildCount();
+
+        boolean found = false;
+        for (int i = count - 1; i >= 0; i--) {
+            final View child = getChildAt(i);
+
+            if ((child.getVisibility()) == VISIBLE || child.getAnimation() != null) {
+                child.getHitRect(frame);
+                if (frame.contains(x, y)) {
+                    final LayoutParams lp = (LayoutParams) child.getLayoutParams();
+                    cellInfo.cell = child;
+                    cellInfo.cellX = lp.cellX;
+                    cellInfo.cellY = lp.cellY;
+                    cellInfo.spanX = lp.cellHSpan;
+                    cellInfo.spanY = lp.cellVSpan;
+                    cellInfo.valid = true;
+                    found = true;
+                    mDirtyTag = false;
+                    break;
+                }
+            }
+        }
+
+        mLastDownOnOccupiedCell = found;
+
+        if (!found) {
+            final int cellXY[] = mTmpCellXY;
+            pointToCellExact(x, y, cellXY);
+
+            final boolean portrait = mPortrait;
+            final int xCount = portrait ? mShortAxisCells : mLongAxisCells;
+            final int yCount = portrait ? mLongAxisCells : mShortAxisCells;
+
+            final boolean[][] occupied = mOccupied;
+            findOccupiedCells(xCount, yCount, occupied, null, true);
+
+            cellInfo.cell = null;
+            cellInfo.cellX = cellXY[0];
+            cellInfo.cellY = cellXY[1];
+            cellInfo.spanX = 1;
+            cellInfo.spanY = 1;
+            cellInfo.valid = cellXY[0] >= 0 && cellXY[1] >= 0 && cellXY[0] < xCount &&
+                    cellXY[1] < yCount && !occupied[cellXY[0]][cellXY[1]];
+
+            // Instead of finding the interesting vacant cells here, wait until a
+            // caller invokes getTag() to retrieve the result. Finding the vacant
+            // cells is a bit expensive and can generate many new objects, it's
+            // therefore better to defer it until we know we actually need it.
+
+            mDirtyTag = true;
+        }
+        setTag(cellInfo);
+    }
+
+
     @Override
     public boolean onInterceptTouchEvent(MotionEvent ev) {
         final int action = ev.getAction();
         final CellInfo cellInfo = mCellInfo;
 
         if (action == MotionEvent.ACTION_DOWN) {
-            final Rect frame = mRect;
-            final int x = (int) ev.getX() + mScrollX;
-            final int y = (int) ev.getY() + mScrollY;
-            final int count = getChildCount();
-
-            boolean found = false;
-            for (int i = count - 1; i >= 0; i--) {
-                final View child = getChildAt(i);
-
-                if ((child.getVisibility()) == VISIBLE || child.getAnimation() != null) {
-                    child.getHitRect(frame);
-                    if (frame.contains(x, y)) {
-                        final LayoutParams lp = (LayoutParams) child.getLayoutParams();
-                        cellInfo.cell = child;
-                        cellInfo.cellX = lp.cellX;
-                        cellInfo.cellY = lp.cellY;
-                        cellInfo.spanX = lp.cellHSpan;
-                        cellInfo.spanY = lp.cellVSpan;
-                        cellInfo.valid = true;
-                        found = true;
-                        mDirtyTag = false;
-                        break;
-                    }
-                }
-            }
-            
-            mLastDownOnOccupiedCell = found;
-
-            if (!found) {
-                int cellXY[] = mCellXY;
-                pointToCellExact(x, y, cellXY);
-
-                final boolean portrait = mPortrait;
-                final int xCount = portrait ? mShortAxisCells : mLongAxisCells;
-                final int yCount = portrait ? mLongAxisCells : mShortAxisCells;
-
-                final boolean[][] occupied = mOccupied;
-                findOccupiedCells(xCount, yCount, occupied, null);
-
-                cellInfo.cell = null;
-                cellInfo.cellX = cellXY[0];
-                cellInfo.cellY = cellXY[1];
-                cellInfo.spanX = 1;
-                cellInfo.spanY = 1;
-                cellInfo.valid = cellXY[0] >= 0 && cellXY[1] >= 0 && cellXY[0] < xCount &&
-                        cellXY[1] < yCount && !occupied[cellXY[0]][cellXY[1]];
-
-                // Instead of finding the interesting vacant cells here, wait until a
-                // caller invokes getTag() to retrieve the result. Finding the vacant
-                // cells is a bit expensive and can generate many new objects, it's
-                // therefore better to defer it until we know we actually need it.
-
-                mDirtyTag = true;
-            }
-            setTag(cellInfo);
+            setTagToCellInfoForPoint((int) ev.getX(), (int) ev.getY());
         } else if (action == MotionEvent.ACTION_UP) {
             cellInfo.cell = null;
             cellInfo.cellX = -1;
@@ -242,7 +295,7 @@
             final int yCount = portrait ? mLongAxisCells : mShortAxisCells;
 
             final boolean[][] occupied = mOccupied;
-            findOccupiedCells(xCount, yCount, occupied, null);
+            findOccupiedCells(xCount, yCount, occupied, null, true);
 
             findIntersectingVacantCells(info, info.cellX, info.cellY, xCount, yCount, occupied);
 
@@ -251,8 +304,8 @@
         return info;
     }
 
-    private static void findIntersectingVacantCells(CellInfo cellInfo, int x, int y,
-            int xCount, int yCount, boolean[][] occupied) {
+    private static void findIntersectingVacantCells(CellInfo cellInfo, int x,
+            int y, int xCount, int yCount, boolean[][] occupied) {
 
         cellInfo.maxVacantSpanX = Integer.MIN_VALUE;
         cellInfo.maxVacantSpanXSpanY = Integer.MIN_VALUE;
@@ -324,6 +377,9 @@
         cellInfo.vacantCells.add(cell);
     }
 
+    /**
+     * Check if the column 'x' is empty from rows 'top' to 'bottom', inclusive.
+     */
     private static boolean isColumnEmpty(int x, int top, int bottom, boolean[][] occupied) {
         for (int y = top; y <= bottom; y++) {
             if (occupied[x][y]) {
@@ -333,6 +389,9 @@
         return true;
     }
 
+    /**
+     * Check if the row 'y' is empty from columns 'left' to 'right', inclusive.
+     */
     private static boolean isRowEmpty(int y, int left, int right, boolean[][] occupied) {
         for (int x = left; x <= right; x++) {
             if (occupied[x][y]) {
@@ -356,7 +415,7 @@
                 }
             }
         } else {
-            findOccupiedCells(xCount, yCount, occupied, ignoreView);
+            findOccupiedCells(xCount, yCount, occupied, ignoreView, true);
         }
 
         CellInfo cellInfo = new CellInfo();
@@ -387,21 +446,21 @@
 
         // Assume the caller will perform their own cell searching, otherwise we
         // risk causing an unnecessary rebuild after findCellForSpan()
-        
+
         return cellInfo;
     }
 
     /**
-     * Given a point, return the cell that strictly encloses that point 
+     * Given a point, return the cell that strictly encloses that point
      * @param x X coordinate of the point
      * @param y Y coordinate of the point
      * @param result Array of 2 ints to hold the x and y coordinate of the cell
      */
     void pointToCellExact(int x, int y, int[] result) {
         final boolean portrait = mPortrait;
-        
-        final int hStartPadding = portrait ? mShortAxisStartPadding : mLongAxisStartPadding;
-        final int vStartPadding = portrait ? mLongAxisStartPadding : mShortAxisStartPadding;
+
+        final int hStartPadding = getLeftPadding();
+        final int vStartPadding = getTopPadding();
 
         result[0] = (x - hStartPadding) / (mCellWidth + mWidthGap);
         result[1] = (y - vStartPadding) / (mCellHeight + mHeightGap);
@@ -414,7 +473,7 @@
         if (result[1] < 0) result[1] = 0;
         if (result[1] >= yAxis) result[1] = yAxis - 1;
     }
-    
+
     /**
      * Given a point, return the cell that most closely encloses that point
      * @param x X coordinate of the point
@@ -427,18 +486,15 @@
 
     /**
      * Given a cell coordinate, return the point that represents the upper left corner of that cell
-     * 
-     * @param cellX X coordinate of the cell 
+     *
+     * @param cellX X coordinate of the cell
      * @param cellY Y coordinate of the cell
-     * 
+     *
      * @param result Array of 2 ints to hold the x and y coordinate of the point
      */
     void cellToPoint(int cellX, int cellY, int[] result) {
-        final boolean portrait = mPortrait;
-        
-        final int hStartPadding = portrait ? mShortAxisStartPadding : mLongAxisStartPadding;
-        final int vStartPadding = portrait ? mLongAxisStartPadding : mShortAxisStartPadding;
-
+        final int hStartPadding = getLeftPadding();
+        final int vStartPadding = getTopPadding();
 
         result[0] = hStartPadding + cellX * (mCellWidth + mWidthGap);
         result[1] = vStartPadding + cellY * (mCellHeight + mHeightGap);
@@ -453,97 +509,117 @@
     }
 
     int getLeftPadding() {
-        return mPortrait ? mShortAxisStartPadding : mLongAxisStartPadding;
+        return mLeftPadding;
     }
 
     int getTopPadding() {
-        return mPortrait ? mLongAxisStartPadding : mShortAxisStartPadding;        
+        return mTopPadding;
     }
 
     int getRightPadding() {
-        return mPortrait ? mShortAxisEndPadding : mLongAxisEndPadding;
+        return mRightPadding;
     }
 
     int getBottomPadding() {
-        return mPortrait ? mLongAxisEndPadding : mShortAxisEndPadding;        
+        return mBottomPadding;
     }
 
     @Override
     protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
         // TODO: currently ignoring padding
-        
+
         int widthSpecMode = MeasureSpec.getMode(widthMeasureSpec);
-        int widthSpecSize =  MeasureSpec.getSize(widthMeasureSpec);
-        
+        int widthSpecSize = MeasureSpec.getSize(widthMeasureSpec);
+
         int heightSpecMode = MeasureSpec.getMode(heightMeasureSpec);
         int heightSpecSize =  MeasureSpec.getSize(heightMeasureSpec);
-        
+
         if (widthSpecMode == MeasureSpec.UNSPECIFIED || heightSpecMode == MeasureSpec.UNSPECIFIED) {
             throw new RuntimeException("CellLayout cannot have UNSPECIFIED dimensions");
         }
 
         final int shortAxisCells = mShortAxisCells;
         final int longAxisCells = mLongAxisCells;
-        final int longAxisStartPadding = mLongAxisStartPadding;
-        final int longAxisEndPadding = mLongAxisEndPadding;
-        final int shortAxisStartPadding = mShortAxisStartPadding;
-        final int shortAxisEndPadding = mShortAxisEndPadding;
         final int cellWidth = mCellWidth;
         final int cellHeight = mCellHeight;
 
-        mPortrait = heightSpecSize > widthSpecSize;
+        boolean portrait = heightSpecSize > widthSpecSize;
+        if (portrait != mPortrait || mOccupied == null) {
+            if (portrait) {
+                mOccupied = new boolean[mShortAxisCells][mLongAxisCells];
+            } else {
+                mOccupied = new boolean[mLongAxisCells][mShortAxisCells];
+            }
+        }
+        mPortrait = portrait;
 
         int numShortGaps = shortAxisCells - 1;
         int numLongGaps = longAxisCells - 1;
 
         if (mPortrait) {
-            int vSpaceLeft = heightSpecSize - longAxisStartPadding - longAxisEndPadding
-                    - (cellHeight * longAxisCells);
+            int vSpaceLeft = heightSpecSize - mLongAxisStartPadding
+                    - mLongAxisEndPadding - (cellHeight * longAxisCells);
             mHeightGap = vSpaceLeft / numLongGaps;
 
-            int hSpaceLeft = widthSpecSize - shortAxisStartPadding - shortAxisEndPadding
-                    - (cellWidth * shortAxisCells);
+            int hSpaceLeft = widthSpecSize - mShortAxisStartPadding
+                    - mShortAxisEndPadding - (cellWidth * shortAxisCells);
             if (numShortGaps > 0) {
                 mWidthGap = hSpaceLeft / numShortGaps;
             } else {
                 mWidthGap = 0;
             }
+
+            if (LauncherApplication.isInPlaceRotationEnabled()) {
+                mWidthGap = mHeightGap = Math.min(mHeightGap, mWidthGap);
+                mLeftPadding = mRightPadding = (widthSpecSize - cellWidth
+                        * shortAxisCells - (shortAxisCells - 1) * mWidthGap) / 2;
+                mTopPadding = mBottomPadding = (heightSpecSize - cellHeight
+                        * longAxisCells - (longAxisCells - 1) * mHeightGap) / 2;
+            } else {
+                mLeftPadding = mShortAxisStartPadding;
+                mRightPadding = mShortAxisEndPadding;
+                mTopPadding = mLongAxisStartPadding;
+                mBottomPadding = mLongAxisEndPadding;
+            }
         } else {
-            int hSpaceLeft = widthSpecSize - longAxisStartPadding - longAxisEndPadding
-                    - (cellWidth * longAxisCells);
+            int hSpaceLeft = widthSpecSize - mLongAxisStartPadding
+                    - mLongAxisEndPadding - (cellWidth * longAxisCells);
             mWidthGap = hSpaceLeft / numLongGaps;
 
-            int vSpaceLeft = heightSpecSize - shortAxisStartPadding - shortAxisEndPadding
-                    - (cellHeight * shortAxisCells);
+            int vSpaceLeft = heightSpecSize - mShortAxisStartPadding
+                    - mShortAxisEndPadding - (cellHeight * shortAxisCells);
             if (numShortGaps > 0) {
                 mHeightGap = vSpaceLeft / numShortGaps;
             } else {
                 mHeightGap = 0;
             }
+
+            if (LauncherApplication.isScreenXLarge()) {
+                mWidthGap = mHeightGap = Math.min(mHeightGap, mWidthGap);
+                mLeftPadding = mRightPadding = (widthSpecSize - cellWidth
+                        * longAxisCells - (longAxisCells - 1) * mWidthGap) / 2 ;
+                mTopPadding = mBottomPadding = (heightSpecSize - cellHeight
+                        * shortAxisCells - (shortAxisCells - 1) * mHeightGap) / 2;
+            } else {
+                mLeftPadding = mLongAxisStartPadding;
+                mRightPadding = mLongAxisEndPadding;
+                mTopPadding = mShortAxisStartPadding;
+                mBottomPadding = mShortAxisEndPadding;
+            }
         }
-        
         int count = getChildCount();
 
         for (int i = 0; i < count; i++) {
             View child = getChildAt(i);
             LayoutParams lp = (LayoutParams) child.getLayoutParams();
+            lp.setup(cellWidth, cellHeight, mWidthGap, mHeightGap,
+                    mLeftPadding, mTopPadding);
 
-            if (mPortrait) {
-                lp.setup(cellWidth, cellHeight, mWidthGap, mHeightGap, shortAxisStartPadding,
-                        longAxisStartPadding);
-            } else {
-                lp.setup(cellWidth, cellHeight, mWidthGap, mHeightGap, longAxisStartPadding,
-                        shortAxisStartPadding);
-            }
-            
-            if (lp.regenerateId) {
-                child.setId(((getId() & 0xFF) << 16) | (lp.cellX & 0xFF) << 8 | (lp.cellY & 0xFF));
-                lp.regenerateId = false;
-            }
+            int childWidthMeasureSpec = MeasureSpec.makeMeasureSpec(lp.width,
+                    MeasureSpec.EXACTLY);
+            int childheightMeasureSpec = MeasureSpec.makeMeasureSpec(lp.height,
+                    MeasureSpec.EXACTLY);
 
-            int childWidthMeasureSpec = MeasureSpec.makeMeasureSpec(lp.width, MeasureSpec.EXACTLY);
-            int childheightMeasureSpec =
-                    MeasureSpec.makeMeasureSpec(lp.height, MeasureSpec.EXACTLY);
             child.measure(childWidthMeasureSpec, childheightMeasureSpec);
         }
 
@@ -567,7 +643,7 @@
                 if (lp.dropped) {
                     lp.dropped = false;
 
-                    final int[] cellXY = mCellXY;
+                    final int[] cellXY = mTmpCellXY;
                     getLocationOnScreen(cellXY);
                     mWallpaperManager.sendWallpaperCommand(getWindowToken(), "android.home.drop",
                             cellXY[0] + childLeft + lp.width / 2,
@@ -593,10 +669,110 @@
         super.setChildrenDrawnWithCacheEnabled(enabled);
     }
 
+    private boolean isVacant(int originX, int originY, int spanX, int spanY) {
+        for (int i = 0; i < spanY; i++) {
+            if (!isRowEmpty(originY + i, originX, originX + spanX - 1, mOccupied)) {
+                return false;
+            }
+        }
+        return true;
+    }
+
+    public View getChildAt(int x, int y) {
+        final int count = getChildCount();
+        for (int i = 0; i < count; i++) {
+            View child = getChildAt(i);
+            LayoutParams lp = (LayoutParams) child.getLayoutParams();
+
+            if ((lp.cellX <= x) && (x < lp.cellX + lp.cellHSpan) &&
+                    (lp.cellY <= y) && (y < lp.cellY + lp.cellHSpan)) {
+                return child;
+            }
+        }
+        return null;
+    }
+
+    /**
+     * Estimate the size that a child with the given dimensions will take in the layout.
+     */
+    void estimateChildSize(int minWidth, int minHeight, int[] result) {
+        // Assuming it's placed at 0, 0, find where the bottom right cell will land
+        rectToCell(minWidth, minHeight, result);
+
+        // Then figure out the rect it will occupy
+        cellToRect(0, 0, result[0], result[1], mRectF);
+        result[0] = (int)mRectF.width();
+        result[1] = (int)mRectF.height();
+    }
+
+    /**
+     * Estimate where the top left cell of the dragged item will land if it is dropped.
+     *
+     * @param originX The X value of the top left corner of the item
+     * @param originY The Y value of the top left corner of the item
+     * @param spanX The number of horizontal cells that the item spans
+     * @param spanY The number of vertical cells that the item spans
+     * @param result The estimated drop cell X and Y.
+     */
+    void estimateDropCell(int originX, int originY, int spanX, int spanY, int[] result) {
+        final int countX = getCountX();
+        final int countY = getCountY();
+
+        pointToCellRounded(originX, originY, result);
+
+        // If the item isn't fully on this screen, snap to the edges
+        int rightOverhang = result[0] + spanX - countX;
+        if (rightOverhang > 0) {
+            result[0] -= rightOverhang; // Snap to right
+        }
+        result[0] = Math.max(0, result[0]); // Snap to left
+        int bottomOverhang = result[1] + spanY - countY;
+        if (bottomOverhang > 0) {
+            result[1] -= bottomOverhang; // Snap to bottom
+        }
+        result[1] = Math.max(0, result[1]); // Snap to top
+    }
+
+    void visualizeDropLocation(View view, int originX, int originY, int spanX, int spanY) {
+        final int[] originCell = mDragCell;
+        final int[] cellXY = mTmpCellXY;
+        estimateDropCell(originX, originY, spanX, spanY, cellXY);
+
+        // Only recalculate the bounding rect when necessary
+        if (!Arrays.equals(cellXY, originCell)) {
+            originCell[0] = cellXY[0];
+            originCell[1] = cellXY[1];
+
+            // Find the top left corner of the rect the object will occupy
+            final int[] topLeft = mTmpCellXY;
+            cellToPoint(originCell[0], originCell[1], topLeft);
+            final int left = topLeft[0];
+            final int top = topLeft[1];
+
+            // Now find the bottom right
+            final int[] bottomRight = mTmpCellXY;
+            cellToPoint(originCell[0] + spanX - 1, originCell[1] + spanY - 1, bottomRight);
+            bottomRight[0] += mCellWidth;
+            bottomRight[1] += mCellHeight;
+
+            final int countX = mPortrait ? mShortAxisCells : mLongAxisCells;
+            final int countY = mPortrait ? mLongAxisCells : mShortAxisCells;
+            // TODO: It's not necessary to do this every time, but it's not especially expensive
+            findOccupiedCells(countX, countY, mOccupied, view, false);
+
+            boolean vacant = isVacant(originCell[0], originCell[1], spanX, spanY);
+            mDragRectDrawable = vacant ? mVacantDrawable : mOccupiedDrawable;
+
+            // mDragRect will be rendered in onDraw()
+            mDragRect.set(left, top, bottomRight[0], bottomRight[1]);
+            invalidate();
+        }
+    }
+
     /**
      * Find a vacant area that will fit the given bounds nearest the requested
      * cell location. Uses Euclidean distance to score multiple vacant areas.
-     * 
+     *
      * @param pixelX The X location at which you want to search for a vacant area.
      * @param pixelY The Y location at which you want to search for a vacant area.
      * @param spanX Horizontal span of the object.
@@ -608,12 +784,11 @@
      */
     int[] findNearestVacantArea(int pixelX, int pixelY, int spanX, int spanY,
             CellInfo vacantCells, int[] recycle) {
-        
+
         // Keep track of best-scoring drop area
         final int[] bestXY = recycle != null ? recycle : new int[2];
-        final int[] cellXY = mCellXY;
         double bestDistance = Double.MAX_VALUE;
-        
+
         // Bail early if vacant cells aren't valid
         if (!vacantCells.valid) {
             return null;
@@ -623,17 +798,18 @@
         final int size = vacantCells.vacantCells.size();
         for (int i = 0; i < size; i++) {
             final CellInfo.VacantCell cell = vacantCells.vacantCells.get(i);
-            
+
             // Reject if vacant cell isn't our exact size
             if (cell.spanX != spanX || cell.spanY != spanY) {
                 continue;
             }
-            
-            // Score is center distance from requested pixel
+
+            // Score is distance from requested pixel to the top left of each cell
+            final int[] cellXY = mTmpCellXY;
             cellToPoint(cell.cellX, cell.cellY, cellXY);
-            
-            double distance = Math.sqrt(Math.pow(cellXY[0] - pixelX, 2) +
-                    Math.pow(cellXY[1] - pixelY, 2));
+
+            double distance = Math.sqrt(Math.pow(cellXY[0] - pixelX, 2)
+                    + Math.pow(cellXY[1] - pixelY, 2));
             if (distance <= bestDistance) {
                 bestDistance = distance;
                 bestXY[0] = cell.cellX;
@@ -641,44 +817,52 @@
             }
         }
 
-        // Return null if no suitable location found 
+        // Return null if no suitable location found
         if (bestDistance < Double.MAX_VALUE) {
             return bestXY;
         } else {
             return null;
         }
     }
-    
+
     /**
-     * Drop a child at the specified position
+     * Called when a drag and drop operation has finished (successfully or not).
+     */
+    void onDragComplete() {
+        // Invalidate the drag data
+        mDragCell[0] = -1;
+        mDragCell[1] = -1;
+
+        mDragRect.setEmpty();
+        invalidate();
+    }
+
+    /**
+     * Mark a child as having been dropped.
      *
      * @param child The child that is being dropped
-     * @param targetXY Destination area to move to
      */
-    void onDropChild(View child, int[] targetXY) {
+    void onDropChild(View child) {
         if (child != null) {
             LayoutParams lp = (LayoutParams) child.getLayoutParams();
-            lp.cellX = targetXY[0];
-            lp.cellY = targetXY[1];
             lp.isDragging = false;
             lp.dropped = true;
             mDragRect.setEmpty();
             child.requestLayout();
-            invalidate();
         }
+        onDragComplete();
     }
 
     void onDropAborted(View child) {
         if (child != null) {
             ((LayoutParams) child.getLayoutParams()).isDragging = false;
-            invalidate();
         }
-        mDragRect.setEmpty();
+        onDragComplete();
     }
 
     /**
      * Start dragging the specified child
-     * 
+     *
      * @param child The child that is being dragged
      */
     void onDragChild(View child) {
@@ -686,58 +870,44 @@
         lp.isDragging = true;
         mDragRect.setEmpty();
     }
-    
-    /**
-     * Drag a child over the specified position
-     * 
-     * @param child The child that is being dropped
-     * @param cellX The child's new x cell location
-     * @param cellY The child's new y cell location 
-     */
-    void onDragOverChild(View child, int cellX, int cellY) {
-        int[] cellXY = mCellXY;
-        pointToCellRounded(cellX, cellY, cellXY);
-        LayoutParams lp = (LayoutParams) child.getLayoutParams();
-        cellToRect(cellXY[0], cellXY[1], lp.cellHSpan, lp.cellVSpan, mDragRect);
-        invalidate();
-    }
-    
+
     /**
      * Computes a bounding rectangle for a range of cells
-     *  
+     *
      * @param cellX X coordinate of upper left corner expressed as a cell position
      * @param cellY Y coordinate of upper left corner expressed as a cell position
-     * @param cellHSpan Width in cells 
+     * @param cellHSpan Width in cells
      * @param cellVSpan Height in cells
-     * @param dragRect Rectnagle into which to put the results
+     * @param resultRect Rect into which to put the results
      */
-    public void cellToRect(int cellX, int cellY, int cellHSpan, int cellVSpan, RectF dragRect) {
+    public void cellToRect(int cellX, int cellY, int cellHSpan, int cellVSpan, RectF resultRect) {
         final boolean portrait = mPortrait;
         final int cellWidth = mCellWidth;
         final int cellHeight = mCellHeight;
         final int widthGap = mWidthGap;
         final int heightGap = mHeightGap;
-        
-        final int hStartPadding = portrait ? mShortAxisStartPadding : mLongAxisStartPadding;
-        final int vStartPadding = portrait ? mLongAxisStartPadding : mShortAxisStartPadding;
-        
+
+        final int hStartPadding = getLeftPadding();
+        final int vStartPadding = getTopPadding();
+
         int width = cellHSpan * cellWidth + ((cellHSpan - 1) * widthGap);
         int height = cellVSpan * cellHeight + ((cellVSpan - 1) * heightGap);
 
         int x = hStartPadding + cellX * (cellWidth + widthGap);
         int y = vStartPadding + cellY * (cellHeight + heightGap);
-        
-        dragRect.set(x, y, x + width, y + height);
+
+        resultRect.set(x, y, x + width, y + height);
     }
-    
+
     /**
-     * Computes the required horizontal and vertical cell spans to always 
+     * Computes the required horizontal and vertical cell spans to always
      * fit the given rectangle.
-     *  
+     *
      * @param width Width in pixels
      * @param height Height in pixels
+     * @param result An array of length 2 in which to store the result (may be null).
      */
-    public int[] rectToCell(int width, int height) {
+    public int[] rectToCell(int width, int height, int[] result) {
         // Always assume we're working with the smallest span to make sure we
         // reserve enough space in both orientations.
         final Resources resources = getResources();
@@ -749,7 +919,12 @@
         int spanX = (width + smallerSize) / smallerSize;
         int spanY = (height + smallerSize) / smallerSize;
 
-        return new int[] { spanX, spanY };
+        if (result == null) {
+            return new int[] { spanX, spanY };
+        }
+        result[0] = spanX;
+        result[1] = spanY;
+        return result;
     }
 
     /**
@@ -758,7 +933,7 @@
      * @param vacant Holds the x and y coordinate of the vacant cell
      * @param spanX Horizontal cell span.
      * @param spanY Vertical cell span.
-     * 
+     *
      * @return True if a vacant cell was found
      */
     public boolean getVacantCell(int[] vacant, int spanX, int spanY) {
@@ -767,7 +942,7 @@
         final int yCount = portrait ? mLongAxisCells : mShortAxisCells;
         final boolean[][] occupied = mOccupied;
 
-        findOccupiedCells(xCount, yCount, occupied, null);
+        findOccupiedCells(xCount, yCount, occupied, null, true);
 
         return findVacantCell(vacant, spanX, spanY, xCount, yCount, occupied);
     }
@@ -796,13 +971,16 @@
         return false;
     }
 
-    boolean[] getOccupiedCells() {
+    /**
+     * Update the array of occupied cells (mOccupied), and return a flattened copy of the array.
+     */
+    boolean[] getOccupiedCellsFlattened() {
         final boolean portrait = mPortrait;
         final int xCount = portrait ? mShortAxisCells : mLongAxisCells;
         final int yCount = portrait ? mLongAxisCells : mShortAxisCells;
         final boolean[][] occupied = mOccupied;
 
-        findOccupiedCells(xCount, yCount, occupied, null);
+        findOccupiedCells(xCount, yCount, occupied, null, true);
 
         final boolean[] flat = new boolean[xCount * yCount];
         for (int y = 0; y < yCount; y++) {
@@ -814,7 +992,14 @@
         return flat;
     }
 
-    private void findOccupiedCells(int xCount, int yCount, boolean[][] occupied, View ignoreView) {
+    /**
+     * Update the array of occupied cells.
+     * @param ignoreView If non-null, the space occupied by this View is treated as vacant
+     * @param ignoreFolders If true, a cell occupied by a Folder is treated as vacant
+     */
+    private void findOccupiedCells(
+            int xCount, int yCount, boolean[][] occupied, View ignoreView, boolean ignoreFolders) {
+
         for (int x = 0; x < xCount; x++) {
             for (int y = 0; y < yCount; y++) {
                 occupied[x][y] = false;
@@ -824,7 +1009,7 @@
         int count = getChildCount();
         for (int i = 0; i < count; i++) {
             View child = getChildAt(i);
-            if (child instanceof Folder || child.equals(ignoreView)) {
+            if ((ignoreFolders && child instanceof Folder) || child.equals(ignoreView)) {
                 continue;
             }
             LayoutParams lp = (LayoutParams) child.getLayoutParams();
@@ -852,6 +1037,17 @@
         return new CellLayout.LayoutParams(p);
     }
 
+    public static class CellLayoutAnimationController extends LayoutAnimationController {
+        public CellLayoutAnimationController(Animation animation, float delay) {
+            super(animation, delay);
+        }
+
+        @Override
+        protected long getDelayForView(View view) {
+            return (int) (Math.random() * 150);
+        }
+    }
+
     public static class LayoutParams extends ViewGroup.MarginLayoutParams {
         /**
          * Horizontal location of the item in the grid.
@@ -876,7 +1072,7 @@
          */
         @ViewDebug.ExportedProperty
         public int cellVSpan;
-        
+
         /**
          * Is this item currently being dragged
          */
@@ -889,8 +1085,6 @@
         @ViewDebug.ExportedProperty
         int y;
 
-        boolean regenerateId;
-        
         boolean dropped;
 
         public LayoutParams(Context c, AttributeSet attrs) {
@@ -904,7 +1098,15 @@
             cellHSpan = 1;
             cellVSpan = 1;
         }
-        
+
+        public LayoutParams(LayoutParams source) {
+            super(source);
+            this.cellX = source.cellX;
+            this.cellY = source.cellY;
+            this.cellHSpan = source.cellHSpan;
+            this.cellVSpan = source.cellVSpan;
+        }
+
         public LayoutParams(int cellX, int cellY, int cellHSpan, int cellVSpan) {
             super(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT);
             this.cellX = cellX;
@@ -915,12 +1117,12 @@
 
         public void setup(int cellWidth, int cellHeight, int widthGap, int heightGap,
                 int hStartPadding, int vStartPadding) {
-            
+
             final int myCellHSpan = cellHSpan;
             final int myCellVSpan = cellVSpan;
             final int myCellX = cellX;
             final int myCellY = cellY;
-            
+
             width = myCellHSpan * cellWidth + ((myCellHSpan - 1) * widthGap) -
                     leftMargin - rightMargin;
             height = myCellVSpan * cellHeight + ((myCellVSpan - 1) * heightGap) -
@@ -929,14 +1131,18 @@
             x = hStartPadding + myCellX * (cellWidth + widthGap) + leftMargin;
             y = vStartPadding + myCellY * (cellHeight + heightGap) + topMargin;
         }
+
+        public String toString() {
+            return "(" + this.cellX + ", " + this.cellY + ")";
+        }
     }
 
     static final class CellInfo implements ContextMenu.ContextMenuInfo {
         /**
-         * See View.AttachInfo.InvalidateInfo for futher explanations about
-         * the recycling mechanism. In this case, we recycle the vacant cells
-         * instances because up to several hundreds can be instanciated when
-         * the user long presses an empty cell.
+         * See View.AttachInfo.InvalidateInfo for futher explanations about the
+         * recycling mechanism. In this case, we recycle the vacant cells
+         * instances because up to several hundreds can be instanciated when the
+         * user long presses an empty cell.
          */
         static final class VacantCell {
             int cellX;
@@ -947,7 +1153,7 @@
             // We can create up to 523 vacant cells on a 4x4 grid, 100 seems
             // like a reasonable compromise given the size of a VacantCell and
             // the fact that the user is not likely to touch an empty 4x4 grid
-            // very often 
+            // very often
             private static final int POOL_LIMIT = 100;
             private static final Object sLock = new Object();
 
@@ -982,8 +1188,8 @@
 
             @Override
             public String toString() {
-                return "VacantCell[x=" + cellX + ", y=" + cellY + ", spanX=" + spanX +
-                        ", spanY=" + spanY + "]";
+                return "VacantCell[x=" + cellX + ", y=" + cellY + ", spanX="
+                        + spanX + ", spanY=" + spanY + "]";
             }
         }
 
@@ -1006,7 +1212,9 @@
             final ArrayList<VacantCell> list = vacantCells;
             final int count = list.size();
 
-            for (int i = 0; i < count; i++) list.get(i).release();
+            for (int i = 0; i < count; i++) {
+                list.get(i).release();
+            }
 
             list.clear();
         }
@@ -1052,7 +1260,9 @@
 
             boolean found = false;
 
-            if (this.spanX >= spanX && this.spanY >= spanY) {
+            // return the span represented by the CellInfo only there is no view there
+            //   (this.cell == null) and there is enough space
+            if (this.cell == null && this.spanX >= spanX && this.spanY >= spanY) {
                 cellXY[0] = cellX;
                 cellXY[1] = cellY;
                 found = true;
@@ -1080,15 +1290,17 @@
                 }
             }
 
-            if (clear) clearVacantCells();
+            if (clear) {
+                clearVacantCells();
+            }
 
             return found;
         }
 
         @Override
         public String toString() {
-            return "Cell[view=" + (cell == null ? "null" : cell.getClass()) + ", x=" + cellX +
-                    ", y=" + cellY + "]";
+            return "Cell[view=" + (cell == null ? "null" : cell.getClass())
+                    + ", x=" + cellX + ", y=" + cellY + "]";
         }
     }
 
@@ -1096,5 +1308,3 @@
         return mLastDownOnOccupiedCell;
     }
 }
-
-
diff --git a/src/com/android/launcher2/DeferredHandler.java b/src/com/android/launcher2/DeferredHandler.java
index 7801642..0323c7f 100644
--- a/src/com/android/launcher2/DeferredHandler.java
+++ b/src/com/android/launcher2/DeferredHandler.java
@@ -16,13 +16,12 @@
 
 package com.android.launcher2;
 
+import java.util.LinkedList;
+
 import android.os.Handler;
 import android.os.Looper;
 import android.os.Message;
 import android.os.MessageQueue;
-import android.util.Log;
-
-import java.util.LinkedList;
 
 /**
  * Queue of things to run on a looper thread.  Items posted with {@link #post} will not
diff --git a/src/com/android/launcher2/DeleteZone.java b/src/com/android/launcher2/DeleteZone.java
index 3a6c63d..b11b1dd 100644
--- a/src/com/android/launcher2/DeleteZone.java
+++ b/src/com/android/launcher2/DeleteZone.java
@@ -254,4 +254,10 @@
             return false;
         }
     }
+
+    @Override
+    public DropTarget getDropTargetDelegate(DragSource source, int x, int y, int xOffset, int yOffset,
+            DragView dragView, Object dragInfo) {
+        return null;
+    }
 }
diff --git a/src/com/android/launcher2/DragController.java b/src/com/android/launcher2/DragController.java
index b4f972b..0130ba9 100644
--- a/src/com/android/launcher2/DragController.java
+++ b/src/com/android/launcher2/DragController.java
@@ -395,6 +395,13 @@
             final int[] coordinates = mCoordinatesTemp;
             DropTarget dropTarget = findDropTarget(screenX, screenY, coordinates);
             if (dropTarget != null) {
+                DropTarget delegate = dropTarget.getDropTargetDelegate(
+                        mDragSource, coordinates[0], coordinates[1],
+                        (int) mTouchOffsetX, (int) mTouchOffsetY, mDragView, mDragInfo);
+                if (delegate != null) {
+                    dropTarget = delegate;
+                }
+
                 if (mLastDropTarget == dropTarget) {
                     dropTarget.onDragOver(mDragSource, coordinates[0], coordinates[1],
                         (int) mTouchOffsetX, (int) mTouchOffsetY, mDragView, mDragInfo);
@@ -482,13 +489,25 @@
         final ArrayList<DropTarget> dropTargets = mDropTargets;
         final int count = dropTargets.size();
         for (int i=count-1; i>=0; i--) {
-            final DropTarget target = dropTargets.get(i);
+            DropTarget target = dropTargets.get(i);
             target.getHitRect(r);
+
+            // Convert the hit rect to screen coordinates
             target.getLocationOnScreen(dropCoordinates);
             r.offset(dropCoordinates[0] - target.getLeft(), dropCoordinates[1] - target.getTop());
+
             if (r.contains(x, y)) {
+                DropTarget delegate = target.getDropTargetDelegate(mDragSource,
+                        x, y, (int)mTouchOffsetX, (int)mTouchOffsetY, mDragView, mDragInfo);
+                if (delegate != null) {
+                    target = delegate;
+                    target.getLocationOnScreen(dropCoordinates);
+                }
+
+                // Make dropCoordinates relative to the DropTarget
                 dropCoordinates[0] = x - dropCoordinates[0];
                 dropCoordinates[1] = y - dropCoordinates[1];
+
                 return target;
             }
         }
diff --git a/src/com/android/launcher2/DragLayer.java b/src/com/android/launcher2/DragLayer.java
index c683207..ab71670 100644
--- a/src/com/android/launcher2/DragLayer.java
+++ b/src/com/android/launcher2/DragLayer.java
@@ -18,13 +18,13 @@
 
 import android.content.Context;
 import android.util.AttributeSet;
-import android.view.MotionEvent;
 import android.view.KeyEvent;
+import android.view.MotionEvent;
 import android.view.View;
 import android.widget.FrameLayout;
 
 /**
- * A ViewGroup that coordinated dragging across its dscendants
+ * A ViewGroup that coordinates dragging across its descendants
  */
 public class DragLayer extends FrameLayout {
     DragController mDragController;
@@ -33,7 +33,7 @@
      * Used to create a new DragLayer from XML.
      *
      * @param context The application's context.
-     * @param attrs The attribtues set containing the Workspace's customization values.
+     * @param attrs The attributes set containing the Workspace's customization values.
      */
     public DragLayer(Context context, AttributeSet attrs) {
         super(context, attrs);
diff --git a/src/com/android/launcher2/DragView.java b/src/com/android/launcher2/DragView.java
index 248712e..bae592c 100644
--- a/src/com/android/launcher2/DragView.java
+++ b/src/com/android/launcher2/DragView.java
@@ -18,20 +18,15 @@
 package com.android.launcher2;
 
 import android.content.Context;
-import android.content.res.TypedArray;
 import android.graphics.Bitmap;
 import android.graphics.Canvas;
 import android.graphics.Matrix;
 import android.graphics.Paint;
 import android.graphics.PixelFormat;
-import android.graphics.Point;
 import android.os.IBinder;
-import android.util.AttributeSet;
-import android.util.Log;
 import android.view.Gravity;
 import android.view.View;
 import android.view.ViewGroup;
-import android.view.KeyEvent;
 import android.view.WindowManager;
 import android.view.WindowManagerImpl;
 
diff --git a/src/com/android/launcher2/DropTarget.java b/src/com/android/launcher2/DropTarget.java
index 72eb330..7e54231 100644
--- a/src/com/android/launcher2/DropTarget.java
+++ b/src/com/android/launcher2/DropTarget.java
@@ -51,6 +51,26 @@
             DragView dragView, Object dragInfo);
 
     /**
+     * Allows a DropTarget to delegate drag and drop events to another object.
+     *
+     * Most subclasses will should just return null from this method.
+     *
+     * @param source DragSource where the drag started
+     * @param x X coordinate of the drop location
+     * @param y Y coordinate of the drop location
+     * @param xOffset Horizontal offset with the object being dragged where the original
+     *          touch happened
+     * @param yOffset Vertical offset with the object being dragged where the original
+     *          touch happened
+     * @param dragView The DragView that's being dragged around on screen.
+     * @param dragInfo Data associated with the object being dragged
+     *
+     * @return The DropTarget to delegate to, or null to not delegate to another object.
+     */
+    DropTarget getDropTargetDelegate(DragSource source, int x, int y, int xOffset, int yOffset,
+            DragView dragView, Object dragInfo);
+
+    /**
      * Check if a drop action can occur at, or near, the requested location.
      * This may be called repeatedly during a drag, so any calls should return
      * quickly.
diff --git a/src/com/android/launcher2/Folder.java b/src/com/android/launcher2/Folder.java
index 7ff8328..4d7c666 100644
--- a/src/com/android/launcher2/Folder.java
+++ b/src/com/android/launcher2/Folder.java
@@ -21,11 +21,11 @@
 import android.util.AttributeSet;
 import android.view.View;
 import android.view.View.OnClickListener;
+import android.widget.AbsListView;
 import android.widget.AdapterView;
+import android.widget.BaseAdapter;
 import android.widget.Button;
 import android.widget.LinearLayout;
-import android.widget.AbsListView;
-import android.widget.BaseAdapter;
 import android.widget.AdapterView.OnItemClickListener;
 import android.widget.AdapterView.OnItemLongClickListener;
 
diff --git a/src/com/android/launcher2/FolderChooser.java b/src/com/android/launcher2/FolderChooser.java
new file mode 100644
index 0000000..b152ad5
--- /dev/null
+++ b/src/com/android/launcher2/FolderChooser.java
@@ -0,0 +1,37 @@
+package com.android.launcher2;
+
+import com.android.launcher.R;
+
+import android.content.ComponentName;
+import android.content.Context;
+import android.content.Intent;
+import android.content.pm.ResolveInfo;
+import android.provider.LiveFolders;
+import android.util.AttributeSet;
+import android.view.View;
+import android.widget.AdapterView;
+
+public class FolderChooser extends HomeCustomizationItemGallery {
+
+    public FolderChooser(Context context, AttributeSet attrs) {
+        super(context, attrs);
+    }
+
+    public boolean onItemLongClick(AdapterView<?> parent, View view, int position, long id) {
+        // todo: this code sorta overlaps with other places
+        ResolveInfo info = (ResolveInfo)getAdapter().getItem(position);
+        mLauncher.prepareAddItemFromHomeCustomizationDrawer();
+
+        Intent createFolderIntent = new Intent(LiveFolders.ACTION_CREATE_LIVE_FOLDER);
+        if (info.labelRes == R.string.group_folder) {
+            // Create app shortcuts is a special built-in case of shortcuts
+            createFolderIntent.putExtra(Intent.EXTRA_SHORTCUT_NAME, getContext().getString(R.string.group_folder));
+        } else {
+            ComponentName name = new ComponentName(info.activityInfo.packageName, info.activityInfo.name);
+            createFolderIntent.setComponent(name);
+        }
+        mLauncher.addLiveFolder(createFolderIntent);
+
+        return true;
+    }
+}
diff --git a/src/com/android/launcher2/FolderIcon.java b/src/com/android/launcher2/FolderIcon.java
index 0013644..78a9516 100644
--- a/src/com/android/launcher2/FolderIcon.java
+++ b/src/com/android/launcher2/FolderIcon.java
@@ -91,7 +91,9 @@
 
     public void onDragEnter(DragSource source, int x, int y, int xOffset, int yOffset,
             DragView dragView, Object dragInfo) {
-        setCompoundDrawablesWithIntrinsicBounds(null, mOpenIcon, null, null);
+        if (acceptDrop(source, x, y, xOffset, yOffset, dragView, dragInfo)) {
+            setCompoundDrawablesWithIntrinsicBounds(null, mOpenIcon, null, null);
+        }
     }
 
     public void onDragOver(DragSource source, int x, int y, int xOffset, int yOffset,
@@ -102,4 +104,10 @@
             DragView dragView, Object dragInfo) {
         setCompoundDrawablesWithIntrinsicBounds(null, mCloseIcon, null, null);
     }
+
+    @Override
+    public DropTarget getDropTargetDelegate(DragSource source, int x, int y, int xOffset, int yOffset,
+            DragView dragView, Object dragInfo) {
+        return null;
+    }
 }
diff --git a/src/com/android/launcher2/FolderListAdapter.java b/src/com/android/launcher2/FolderListAdapter.java
new file mode 100644
index 0000000..bdfeaeb
--- /dev/null
+++ b/src/com/android/launcher2/FolderListAdapter.java
@@ -0,0 +1,20 @@
+package com.android.launcher2;
+
+import com.android.launcher.R;
+
+import android.content.Context;
+import android.content.pm.ResolveInfo;
+
+public class FolderListAdapter extends IntentListAdapter {
+
+    public FolderListAdapter(Context context, String actionFilter) {
+        super(context, actionFilter);
+
+        // Manually create a separate entry for creating a folder in Launcher
+        ResolveInfo folder = new ResolveInfo();
+        folder.icon = R.drawable.ic_launcher_folder;
+        folder.labelRes = R.string.group_folder;
+        folder.resolvePackageName = context.getPackageName();
+        mIntentList.add(0, folder);
+    }
+}
diff --git a/src/com/android/launcher2/HomeCustomizationItemGallery.java b/src/com/android/launcher2/HomeCustomizationItemGallery.java
new file mode 100644
index 0000000..df64d5e
--- /dev/null
+++ b/src/com/android/launcher2/HomeCustomizationItemGallery.java
@@ -0,0 +1,50 @@
+package com.android.launcher2;
+
+import android.content.Context;
+import android.util.AttributeSet;
+import android.view.MotionEvent;
+import android.widget.Gallery;
+
+public abstract class HomeCustomizationItemGallery extends Gallery
+    implements Gallery.OnItemLongClickListener {
+
+    protected Context mContext;
+
+    protected Launcher mLauncher;
+
+    protected int mMotionDownRawX;
+    protected int mMotionDownRawY;
+
+    public HomeCustomizationItemGallery(Context context, AttributeSet attrs) {
+        super(context, attrs);
+        setLongClickable(true);
+        setOnItemLongClickListener(this);
+        mContext = context;
+
+        setCallbackDuringFling(false);
+    }
+
+    public void setLauncher(Launcher launcher) {
+        mLauncher = launcher;
+    }
+
+    @Override
+    public boolean onTouchEvent(MotionEvent ev) {
+        if (ev.getAction() == MotionEvent.ACTION_DOWN && mLauncher.isAllAppsVisible()) {
+            return false;
+        }
+
+        super.onTouchEvent(ev);
+
+        int x = (int) ev.getX();
+        int y = (int) ev.getY();
+
+        switch (ev.getAction()) {
+        case MotionEvent.ACTION_DOWN:
+            mMotionDownRawX = (int) ev.getRawX();
+            mMotionDownRawY = (int) ev.getRawY();
+        }
+        return true;
+    }
+}
+
diff --git a/src/com/android/launcher2/InstallShortcutReceiver.java b/src/com/android/launcher2/InstallShortcutReceiver.java
index 3fc568b..3638054 100644
--- a/src/com/android/launcher2/InstallShortcutReceiver.java
+++ b/src/com/android/launcher2/InstallShortcutReceiver.java
@@ -16,11 +16,11 @@
 
 package com.android.launcher2;
 
+import java.util.ArrayList;
+
 import android.content.BroadcastReceiver;
 import android.content.Context;
 import android.content.Intent;
-import android.content.ContentResolver;
-import android.database.Cursor;
 import android.widget.Toast;
 
 import com.android.launcher.R;
@@ -86,38 +86,24 @@
     private static boolean findEmptyCell(Context context, int[] xy, int screen) {
         final int xCount = Launcher.NUMBER_CELLS_X;
         final int yCount = Launcher.NUMBER_CELLS_Y;
-
         boolean[][] occupied = new boolean[xCount][yCount];
 
-        final ContentResolver cr = context.getContentResolver();
-        Cursor c = cr.query(LauncherSettings.Favorites.CONTENT_URI,
-            new String[] { LauncherSettings.Favorites.CELLX, LauncherSettings.Favorites.CELLY,
-                    LauncherSettings.Favorites.SPANX, LauncherSettings.Favorites.SPANY },
-            LauncherSettings.Favorites.SCREEN + "=?",
-            new String[] { String.valueOf(screen) }, null);
-
-        final int cellXIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites.CELLX);
-        final int cellYIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites.CELLY);
-        final int spanXIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites.SPANX);
-        final int spanYIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites.SPANY);
-
-        try {
-            while (c.moveToNext()) {
-                int cellX = c.getInt(cellXIndex);
-                int cellY = c.getInt(cellYIndex);
-                int spanX = c.getInt(spanXIndex);
-                int spanY = c.getInt(spanYIndex);
-
+        ArrayList<ItemInfo> items = LauncherModel.getItemsInLocalCoordinates(context);
+        ItemInfo item = null;
+        int cellX, cellY, spanX, spanY;
+        for (int i = 0; i < items.size(); ++i) {
+            item = items.get(i);
+            if (item.screen == screen) {
+                cellX = item.cellX;
+                cellY = item.cellY;
+                spanX = item.spanX;
+                spanY = item.spanY;
                 for (int x = cellX; x < cellX + spanX && x < xCount; x++) {
                     for (int y = cellY; y < cellY + spanY && y < yCount; y++) {
                         occupied[x][y] = true;
                     }
                 }
             }
-        } catch (Exception e) {
-            return false;
-        } finally {
-            c.close();
         }
 
         return CellLayout.findVacantCell(xy, 1, 1, xCount, yCount, occupied);
diff --git a/src/com/android/launcher2/IntentListAdapter.java b/src/com/android/launcher2/IntentListAdapter.java
new file mode 100644
index 0000000..7ebffd4
--- /dev/null
+++ b/src/com/android/launcher2/IntentListAdapter.java
@@ -0,0 +1,67 @@
+package com.android.launcher2;
+
+import com.android.launcher.R;
+
+import android.content.Context;
+import android.content.Intent;
+import android.content.pm.PackageManager;
+import android.content.pm.ResolveInfo;
+import android.graphics.drawable.Drawable;
+import android.provider.LiveFolders;
+import android.util.Log;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.BaseAdapter;
+import android.widget.ImageView;
+import android.widget.LinearLayout;
+import android.widget.TextView;
+
+import java.util.List;
+
+public class IntentListAdapter extends BaseAdapter {
+    private LayoutInflater mLayoutInflater;
+    private PackageManager mPackageManager;
+    protected List<ResolveInfo> mIntentList;
+
+    public IntentListAdapter(Context context, String actionFilter) {
+        mLayoutInflater = (LayoutInflater)context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
+        mPackageManager = context.getPackageManager();
+
+        Intent createLiveFolderIntent = new Intent(actionFilter);
+        mIntentList = mPackageManager.queryIntentActivities(createLiveFolderIntent, 0);
+    }
+
+    public int getCount() {
+        return mIntentList.size();
+    }
+
+    public Object getItem(int position) {
+        return mIntentList.get(position);
+    }
+
+    public long getItemId(int position) {
+        return position;
+    }
+
+    public View getView(int position, View convertView, ViewGroup parent) {
+        TextView textView;
+
+        if (convertView == null) {
+            textView = (TextView) mLayoutInflater.inflate(
+                    R.layout.home_customization_drawer_item, parent, false);
+        } else {
+            textView = (TextView) convertView;
+        }
+
+        ResolveInfo info = mIntentList.get(position);
+        Drawable image = info.loadIcon(mPackageManager);
+        image.setBounds(0, 0, image.getIntrinsicWidth(), image.getIntrinsicHeight());
+        textView.setCompoundDrawables(null, image, null, null);
+
+        CharSequence label = info.loadLabel(mPackageManager);
+        textView.setText(label);
+
+        return textView;
+    }
+}
diff --git a/src/com/android/launcher2/ItemInfo.java b/src/com/android/launcher2/ItemInfo.java
index a96d9ae..dc45750 100644
--- a/src/com/android/launcher2/ItemInfo.java
+++ b/src/com/android/launcher2/ItemInfo.java
@@ -112,6 +112,11 @@
         }
     }
 
+    void updateValuesWithCoordinates(ContentValues values, int cellX, int cellY) {
+        values.put(LauncherSettings.Favorites.CELLX, cellX);
+        values.put(LauncherSettings.Favorites.CELLY, cellY);
+    }
+
     static byte[] flattenBitmap(Bitmap bitmap) {
         // Try go guesstimate how much space the icon will take when serialized
         // to avoid unnecessary allocations/copies during the write.
diff --git a/src/com/android/launcher2/Launcher.java b/src/com/android/launcher2/Launcher.java
index a5988bf..f846b51 100644
--- a/src/com/android/launcher2/Launcher.java
+++ b/src/com/android/launcher2/Launcher.java
@@ -17,6 +17,7 @@
 package com.android.launcher2;
 
 import com.android.common.Search;
+import com.android.launcher.R;
 
 import android.app.Activity;
 import android.app.AlertDialog;
@@ -24,6 +25,8 @@
 import android.app.SearchManager;
 import android.app.StatusBarManager;
 import android.app.WallpaperManager;
+import android.appwidget.AppWidgetManager;
+import android.appwidget.AppWidgetProviderInfo;
 import android.content.ActivityNotFoundException;
 import android.content.BroadcastReceiver;
 import android.content.ComponentName;
@@ -41,10 +44,10 @@
 import android.content.res.TypedArray;
 import android.database.ContentObserver;
 import android.graphics.Bitmap;
-import android.graphics.Rect;
 import android.graphics.Canvas;
-import android.graphics.drawable.Drawable;
+import android.graphics.Rect;
 import android.graphics.drawable.ColorDrawable;
+import android.graphics.drawable.Drawable;
 import android.net.Uri;
 import android.os.Bundle;
 import android.os.Handler;
@@ -63,34 +66,37 @@
 import android.view.LayoutInflater;
 import android.view.Menu;
 import android.view.MenuItem;
+import android.view.MotionEvent;
 import android.view.View;
-import android.view.ViewGroup;
 import android.view.View.OnLongClickListener;
+import android.view.ViewGroup;
+import android.view.WindowManager;
+import android.view.animation.Animation;
+import android.view.animation.Animation.AnimationListener;
+import android.view.animation.AnimationUtils;
 import android.view.inputmethod.InputMethodManager;
 import android.widget.EditText;
+import android.widget.ImageView;
+import android.widget.LinearLayout;
+import android.widget.PopupWindow;
+import android.widget.TabHost;
 import android.widget.TextView;
 import android.widget.Toast;
-import android.widget.ImageView;
-import android.widget.PopupWindow;
-import android.widget.LinearLayout;
-import android.appwidget.AppWidgetManager;
-import android.appwidget.AppWidgetProviderInfo;
 
-import java.util.ArrayList;
-import java.util.List;
-import java.util.HashMap;
+import java.io.DataInputStream;
 import java.io.DataOutputStream;
 import java.io.FileNotFoundException;
 import java.io.IOException;
-import java.io.DataInputStream;
-
-import com.android.launcher.R;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
 
 /**
  * Default launcher application.
  */
 public final class Launcher extends Activity
-        implements View.OnClickListener, OnLongClickListener, LauncherModel.Callbacks, AllAppsView.Watcher {
+        implements View.OnClickListener, OnLongClickListener, LauncherModel.Callbacks,
+                   AllAppsView.Watcher, View.OnTouchListener {
     static final String TAG = "Launcher";
     static final boolean LOGD = false;
 
@@ -182,6 +188,7 @@
     private DeleteZone mDeleteZone;
     private HandleView mHandleView;
     private AllAppsView mAllAppsGrid;
+    private TabHost mHomeCustomizationDrawer;
 
     private Bundle mSavedState;
 
@@ -211,10 +218,17 @@
     private Drawable[] mHotseatIcons = null;
     private CharSequence[] mHotseatLabels = null;
 
+
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
 
+        if (LauncherApplication.isInPlaceRotationEnabled()) {
+            // hide the status bar (temporary until we get the status bar design figured out)
+            getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);
+            this.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_SENSOR);
+        }
+
         LauncherApplication app = ((LauncherApplication)getApplication());
         mModel = app.setLauncher(this);
         mIconCache = app.getIconCache();
@@ -232,8 +246,26 @@
         loadHotseats();
         checkForLocaleChange();
         setWallpaperDimension();
-
         setContentView(R.layout.launcher);
+        mHomeCustomizationDrawer = (TabHost) findViewById(com.android.internal.R.id.tabhost);
+        if (mHomeCustomizationDrawer != null) {
+            mHomeCustomizationDrawer.setup();
+
+            String widgetsLabel = getString(R.string.widgets_tab_label);
+            mHomeCustomizationDrawer.addTab(mHomeCustomizationDrawer.newTabSpec("widgets")
+                    .setIndicator(widgetsLabel).setContent(R.id.widget_chooser));
+            String foldersLabel = getString(R.string.folders_tab_label);
+            mHomeCustomizationDrawer.addTab(mHomeCustomizationDrawer.newTabSpec("folders")
+                    .setIndicator(foldersLabel).setContent(R.id.folder_chooser));
+            String shortcutsLabel = getString(R.string.shortcuts_tab_label);
+            mHomeCustomizationDrawer.addTab(mHomeCustomizationDrawer.newTabSpec("shortcuts")
+                    .setIndicator(shortcutsLabel).setContent(R.id.shortcut_chooser));
+            String wallpapersLabel = getString(R.string.wallpapers_tab_label);
+            mHomeCustomizationDrawer.addTab(mHomeCustomizationDrawer.newTabSpec("wallpapers")
+                    .setIndicator(wallpapersLabel).setContent(R.id.wallpaperstab));
+    
+            mHomeCustomizationDrawer.setCurrentTab(0);
+        }
         setupViews();
 
         registerContentObservers();
@@ -259,6 +291,19 @@
         registerReceiver(mCloseSystemDialogsReceiver, filter);
     }
 
+    @Override
+    public void onConfigurationChanged(Configuration newConfig) {
+        // TODO Auto-generated method stub
+        super.onConfigurationChanged(newConfig);
+
+        if (LauncherApplication.isInPlaceRotationEnabled()) {
+            mModel.updateOrientation();
+            mWorkspace.refreshWorkspaceChildren();
+            mWorkspace.rotateCurrentScreensChildren();
+        }
+    }
+
+
     private void checkForLocaleChange() {
         final LocaleConfiguration localeConfiguration = new LocaleConfiguration();
         readConfiguration(this, localeConfiguration);
@@ -419,7 +464,7 @@
                 // note: if the user launches this without a default set, she
                 // will always be taken to the default URL above; this is
                 // unavoidable as we must specify a valid URL in order for the
-                // chooser to appear, and once the user selects something, that 
+                // chooser to appear, and once the user selects something, that
                 // URL is unavoidably sent to the chosen app.
             } else {
                 try {
@@ -429,7 +474,7 @@
                     // bogus; leave intent=null
                 }
             }
-            
+
             if (intent == null) {
                 mHotseats[i] = null;
                 mHotseatLabels[i] = getText(R.string.activity_not_found);
@@ -437,15 +482,15 @@
             }
 
             if (LOGD) {
-                Log.d(TAG, "loadHotseats: hotseat " + i 
-                    + " initial intent=[" 
+                Log.d(TAG, "loadHotseats: hotseat " + i
+                    + " initial intent=["
                     + intent.toUri(Intent.URI_INTENT_SCHEME)
                     + "]");
             }
 
             ResolveInfo bestMatch = pm.resolveActivity(intent, PackageManager.MATCH_DEFAULT_ONLY);
             List<ResolveInfo> allMatches = pm.queryIntentActivities(intent, PackageManager.MATCH_DEFAULT_ONLY);
-            if (LOGD) { 
+            if (LOGD) {
                 Log.d(TAG, "Best match for intent: " + bestMatch);
                 Log.d(TAG, "All matches: ");
                 for (ResolveInfo ri : allMatches) {
@@ -454,8 +499,8 @@
             }
             // did this resolve to a single app, or the resolver?
             if (allMatches.size() == 0 || bestMatch == null) {
-                // can't find any activity to handle this. let's leave the 
-                // intent as-is and let Launcher show a toast when it fails 
+                // can't find any activity to handle this. let's leave the
+                // intent as-is and let Launcher show a toast when it fails
                 // to launch.
                 mHotseats[i] = intent;
 
@@ -471,7 +516,7 @@
                         break;
                     }
                 }
-                
+
                 if (!found) {
                     if (LOGD) Log.d(TAG, "Multiple options, no default yet");
                     // the bestMatch is probably the ResolveActivity, meaning the
@@ -496,8 +541,8 @@
             }
 
             if (LOGD) {
-                Log.d(TAG, "loadHotseats: hotseat " + i 
-                    + " final intent=[" 
+                Log.d(TAG, "loadHotseats: hotseat " + i
+                    + " final intent=["
                     + ((mHotseats[i] == null)
                         ? "null"
                         : mHotseats[i].toUri(Intent.URI_INTENT_SCHEME))
@@ -536,10 +581,11 @@
                     completeAddLiveFolder(data, mAddItemCellInfo);
                     break;
                 case REQUEST_PICK_APPWIDGET:
-                    addAppWidget(data);
+                    addAppWidgetFromPick(data);
                     break;
                 case REQUEST_CREATE_APPWIDGET:
-                    completeAddAppWidget(data, mAddItemCellInfo);
+                    int appWidgetId = data.getIntExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, -1);
+                    completeAddAppWidget(appWidgetId, mAddItemCellInfo);
                     break;
                 case REQUEST_PICK_WALLPAPER:
                     // We just wanted the activity result here so we can clear mWaitingForResult
@@ -572,8 +618,13 @@
     @Override
     protected void onPause() {
         super.onPause();
-        dismissPreview(mPreviousView);
-        dismissPreview(mNextView);
+        // Some launcher layouts don't have a previous and next view
+        if (mPreviousView != null) {
+            dismissPreview(mPreviousView);
+        }
+        if (mNextView != null) {
+            dismissPreview(mNextView);
+        }
         mDragController.cancelDrag();
     }
 
@@ -706,12 +757,17 @@
         mAllAppsGrid.setDragController(dragController);
         ((View) mAllAppsGrid).setWillNotDraw(false); // We don't want a hole punched in our window.
         // Manage focusability manually since this thing is always visible
-        ((View) mAllAppsGrid).setFocusable(false); 
+        ((View) mAllAppsGrid).setFocusable(false);
 
         mWorkspace = (Workspace) dragLayer.findViewById(R.id.workspace);
         final Workspace workspace = mWorkspace;
         workspace.setHapticFeedbackEnabled(false);
 
+        // We only intercept touch events to dismiss the home customization drawer; if it doesn't
+        //  exist, then no need to do this
+        if (mHomeCustomizationDrawer != null)
+            workspace.setOnInterceptTouchListener(this);
+
         DeleteZone deleteZone = (DeleteZone) dragLayer.findViewById(R.id.delete_zone);
         mDeleteZone = deleteZone;
 
@@ -720,24 +776,42 @@
         mHandleView.setOnClickListener(this);
         mHandleView.setOnLongClickListener(this);
 
-        ImageView hotseatLeft = (ImageView) findViewById(R.id.hotseat_left);
-        hotseatLeft.setContentDescription(mHotseatLabels[0]);
-        hotseatLeft.setImageDrawable(mHotseatIcons[0]);
-        ImageView hotseatRight = (ImageView) findViewById(R.id.hotseat_right);
-        hotseatRight.setContentDescription(mHotseatLabels[1]);
-        hotseatRight.setImageDrawable(mHotseatIcons[1]);
+        WidgetChooser widgetChooser = (WidgetChooser) findViewById(R.id.widget_chooser);
+        if (widgetChooser != null) {
+            WidgetListAdapter widgetGalleryAdapter = new WidgetListAdapter(this);
+            widgetChooser.setAdapter(widgetGalleryAdapter);
+            widgetChooser.setDragController(dragController);
+            widgetChooser.setLauncher(this);
 
-        mPreviousView = (ImageView) dragLayer.findViewById(R.id.previous_screen);
-        mNextView = (ImageView) dragLayer.findViewById(R.id.next_screen);
+            FolderChooser folderChooser = (FolderChooser) findViewById(R.id.folder_chooser);
+            IntentListAdapter folderTypes = new FolderListAdapter(this, LiveFolders.ACTION_CREATE_LIVE_FOLDER);
+            folderChooser.setAdapter(folderTypes);
+            folderChooser.setLauncher(this);
 
-        Drawable previous = mPreviousView.getDrawable();
-        Drawable next = mNextView.getDrawable();
-        mWorkspace.setIndicators(previous, next);
+            ShortcutChooser shortcutChooser = (ShortcutChooser) findViewById(R.id.shortcut_chooser);
+            IntentListAdapter shortcutTypes = new ShortcutListAdapter(this, Intent.ACTION_CREATE_SHORTCUT);
+            shortcutChooser.setAdapter(shortcutTypes);
+            shortcutChooser.setLauncher(this);
+        } else {
+             ImageView hotseatLeft = (ImageView) findViewById(R.id.hotseat_left);
+             hotseatLeft.setContentDescription(mHotseatLabels[0]);
+             hotseatLeft.setImageDrawable(mHotseatIcons[0]);
+             ImageView hotseatRight = (ImageView) findViewById(R.id.hotseat_right);
+             hotseatRight.setContentDescription(mHotseatLabels[1]);
+             hotseatRight.setImageDrawable(mHotseatIcons[1]);
 
-        mPreviousView.setHapticFeedbackEnabled(false);
-        mPreviousView.setOnLongClickListener(this);
-        mNextView.setHapticFeedbackEnabled(false);
-        mNextView.setOnLongClickListener(this);
+             mPreviousView = (ImageView) dragLayer.findViewById(R.id.previous_screen);
+             mNextView = (ImageView) dragLayer.findViewById(R.id.next_screen);
+
+             Drawable previous = mPreviousView.getDrawable();
+             Drawable next = mNextView.getDrawable();
+             mWorkspace.setIndicators(previous, next);
+
+             mPreviousView.setHapticFeedbackEnabled(false);
+             mPreviousView.setOnLongClickListener(this);
+             mNextView.setHapticFeedbackEnabled(false);
+             mNextView.setOnLongClickListener(this);
+        }
 
         workspace.setOnLongClickListener(this);
         workspace.setDragController(dragController);
@@ -745,7 +819,8 @@
 
         deleteZone.setLauncher(this);
         deleteZone.setDragController(dragController);
-        deleteZone.setHandle(findViewById(R.id.all_apps_button_cluster));
+        int deleteZoneHandleId = LauncherApplication.isScreenXLarge() ? R.id.add_button : R.id.all_apps_button_cluster;
+        deleteZone.setHandle(findViewById(deleteZoneHandleId));
 
         dragController.setDragScoller(workspace);
         dragController.setDragListener(deleteZone);
@@ -792,7 +867,7 @@
             );
         }
     }
-    
+
     /**
      * Creates a view representing a shortcut.
      *
@@ -876,17 +951,12 @@
      * @param data The intent describing the appWidgetId.
      * @param cellInfo The position on screen where to create the widget.
      */
-    private void completeAddAppWidget(Intent data, CellLayout.CellInfo cellInfo) {
-        Bundle extras = data.getExtras();
-        int appWidgetId = extras.getInt(AppWidgetManager.EXTRA_APPWIDGET_ID, -1);
-
-        if (LOGD) Log.d(TAG, "dumping extras content=" + extras.toString());
-
+    private void completeAddAppWidget(int appWidgetId, CellLayout.CellInfo cellInfo) {
         AppWidgetProviderInfo appWidgetInfo = mAppWidgetManager.getAppWidgetInfo(appWidgetId);
 
         // Calculate the grid spans needed to fit this widget
         CellLayout layout = (CellLayout) mWorkspace.getChildAt(cellInfo.screen);
-        int[] spans = layout.rectToCell(appWidgetInfo.minWidth, appWidgetInfo.minHeight);
+        int[] spans = layout.rectToCell(appWidgetInfo.minWidth, appWidgetInfo.minHeight, null);
 
         // Try finding open space on Launcher screen
         final int[] xy = mCellCoordinates;
@@ -960,10 +1030,13 @@
             boolean alreadyOnHome = ((intent.getFlags() & Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT)
                         != Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT);
             boolean allAppsVisible = isAllAppsVisible();
+
+            // TODO: Figure out the right thing to do in XLarge mode here
             if (!mWorkspace.isDefaultScreenShowing()) {
                 mWorkspace.moveToDefaultScreen(alreadyOnHome && !allAppsVisible);
             }
             closeAllApps(alreadyOnHome && allAppsVisible);
+            hideCustomizationDrawer();
 
             final View v = getWindow().peekDecorView();
             if (v != null && v.getWindowToken() != null) {
@@ -978,6 +1051,13 @@
     protected void onRestoreInstanceState(Bundle savedInstanceState) {
         // Do not call super here
         mSavedInstanceState = savedInstanceState;
+
+        if (mHomeCustomizationDrawer != null) {
+            String cur = savedInstanceState.getString("currentTab");
+            if (cur != null) {
+                mHomeCustomizationDrawer.setCurrentTabByTag(cur);
+            }
+        }
     }
 
     @Override
@@ -1014,13 +1094,20 @@
             outState.putInt(RUNTIME_STATE_PENDING_ADD_COUNT_X, layout.getCountX());
             outState.putInt(RUNTIME_STATE_PENDING_ADD_COUNT_Y, layout.getCountY());
             outState.putBooleanArray(RUNTIME_STATE_PENDING_ADD_OCCUPIED_CELLS,
-                   layout.getOccupiedCells());
+                   layout.getOccupiedCellsFlattened());
         }
 
         if (mFolderInfo != null && mWaitingForResult) {
             outState.putBoolean(RUNTIME_STATE_PENDING_FOLDER_RENAME, true);
             outState.putLong(RUNTIME_STATE_PENDING_FOLDER_RENAME_ID, mFolderInfo.id);
         }
+
+        if (mHomeCustomizationDrawer != null) {
+            String currentTabTag = mHomeCustomizationDrawer.getCurrentTabTag();
+            if (currentTabTag != null) {
+                outState.putString("currentTab", currentTabTag);
+            }
+        }
     }
 
     @Override
@@ -1040,9 +1127,14 @@
         unbindDesktopItems();
 
         getContentResolver().unregisterContentObserver(mWidgetObserver);
-        
-        dismissPreview(mPreviousView);
-        dismissPreview(mNextView);
+
+        // Some launcher layouts don't have a previous and next view
+        if (mPreviousView != null) {
+            dismissPreview(mPreviousView);
+        }
+        if (mNextView != null) {
+            dismissPreview(mNextView);
+        }
 
         unregisterReceiver(mCloseSystemDialogsReceiver);
     }
@@ -1131,6 +1223,13 @@
         return true;
     }
 
+    // we need to initialize mAddItemCellInfo before adding something to the homescreen -- when
+    // using the settings menu to add an item, something similar happens in showAddDialog
+    public void prepareAddItemFromHomeCustomizationDrawer() {
+        mMenuAddInfo = mWorkspace.findAllVacantCells(null);
+        mAddItemCellInfo = mMenuAddInfo;
+    }
+
     @Override
     public boolean onOptionsItemSelected(MenuItem item) {
         switch (item.getItemId()) {
@@ -1168,12 +1267,32 @@
 
     private void addItems() {
         closeAllApps(true);
-        showAddDialog(mMenuAddInfo);
+        if (LauncherApplication.isScreenXLarge()) {
+            // Animate the widget chooser up from the bottom of the screen
+            if (!isCustomizationDrawerVisible()) {
+                showCustomizationDrawer();
+            }
+        } else {
+            showAddDialog(mMenuAddInfo);
+        }
     }
 
-    void addAppWidget(Intent data) {
+    void addAppWidgetFromDrop(ComponentName appWidgetProvider, CellLayout.CellInfo cellInfo) {
+        mAddItemCellInfo = cellInfo;
+        int appWidgetId = getAppWidgetHost().allocateAppWidgetId();
+        AppWidgetManager.getInstance(this).bindAppWidgetId(appWidgetId, appWidgetProvider);
+        addAppWidgetImpl(appWidgetId);
+    }
+
+    void addAppWidgetFromPick(Intent data) {
         // TODO: catch bad widget exception when sent
         int appWidgetId = data.getIntExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, -1);
+        // TODO: Is this log message meaningful?
+        if (LOGD) Log.d(TAG, "dumping extras content=" + data.getExtras());
+        addAppWidgetImpl(appWidgetId);
+    }
+
+    void addAppWidgetImpl(int appWidgetId) {
         AppWidgetProviderInfo appWidget = mAppWidgetManager.getAppWidgetInfo(appWidgetId);
 
         if (appWidget.configure != null) {
@@ -1185,7 +1304,7 @@
             startActivityForResultSafely(intent, REQUEST_CREATE_APPWIDGET);
         } else {
             // Otherwise just add it
-            onActivityResult(REQUEST_CREATE_APPWIDGET, Activity.RESULT_OK, data);
+            completeAddAppWidget(appWidgetId, mAddItemCellInfo);
         }
     }
 
@@ -1386,11 +1505,16 @@
     public void onBackPressed() {
         if (isAllAppsVisible()) {
             closeAllApps(true);
+        } else if (isCustomizationDrawerVisible()) {
+            hideCustomizationDrawer();
         } else {
             closeFolder();
         }
-        dismissPreview(mPreviousView);
-        dismissPreview(mNextView);
+        // Some launcher layouts don't have a previous and next view
+        if (mPreviousView != null) {
+            dismissPreview(mPreviousView);
+            dismissPreview(mNextView);
+        }
     }
 
     private void closeFolder() {
@@ -1456,6 +1580,23 @@
         }
     }
 
+    public boolean onTouch(View v, MotionEvent event) {
+        // this is being forwarded from mWorkspace;
+        // clicking anywhere on the workspace causes the drawer to slide down
+        hideCustomizationDrawer();
+        return false;
+    }
+
+    /**
+     * Event handler for the "plus" button that appears on the home screen, which
+     * enters home screen customization mode.
+     *
+     * @param v The view that was clicked.
+     */
+    public void onClickAddButton(View v) {
+        addItems();
+    }
+
     void startActivitySafely(Intent intent, Object tag) {
         intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
         try {
@@ -1471,7 +1612,7 @@
                     + "tag="+ tag + " intent=" + intent, e);
         }
     }
-    
+
     void startActivityForResultSafely(Intent intent, int requestCode) {
         try {
             startActivityForResult(intent, requestCode);
@@ -1516,7 +1657,7 @@
      *
      * @param folderInfo The FolderInfo describing the folder to open.
      */
-    private void openFolder(FolderInfo folderInfo) {
+    public void openFolder(FolderInfo folderInfo) {
         Folder openFolder;
 
         if (folderInfo instanceof UserFolderInfo) {
@@ -1533,7 +1674,8 @@
         openFolder.bind(folderInfo);
         folderInfo.opened = true;
 
-        mWorkspace.addInScreen(openFolder, folderInfo.screen, 0, 0, 4, 4);
+        mWorkspace.addInFullScreen(openFolder, folderInfo.screen);
+
         openFolder.onOpen();
     }
 
@@ -1631,9 +1773,9 @@
         final Workspace workspace = mWorkspace;
 
         CellLayout cell = ((CellLayout) workspace.getChildAt(start));
-        
+
         float max = workspace.getChildCount();
-        
+
         final Rect r = new Rect();
         resources.getDrawable(R.drawable.preview_background).getPadding(r);
         int extraW = (int) ((r.left + r.right) * max);
@@ -1684,7 +1826,7 @@
             preview.addView(image,
                     LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT);
 
-            bitmaps.add(bitmap);            
+            bitmaps.add(bitmap);
         }
 
         final PopupWindow p = new PopupWindow(this);
@@ -1705,7 +1847,7 @@
 
         anchor.setTag(p);
         anchor.setTag(R.id.workspace, preview);
-        anchor.setTag(R.id.icon, bitmaps);        
+        anchor.setTag(R.id.icon, bitmaps);
     }
 
     class PreviewTouchHandler implements View.OnClickListener, Runnable, View.OnFocusChangeListener {
@@ -1721,7 +1863,7 @@
         }
 
         public void run() {
-            dismissPreview(mAnchor);            
+            dismissPreview(mAnchor);
         }
 
         public void onFocusChange(View v, boolean hasFocus) {
@@ -1776,6 +1918,7 @@
     }
 
     private void pickShortcut() {
+        // Insert extra item to handle picking application
         Bundle bundle = new Bundle();
 
         ArrayList<String> shortcutNames = new ArrayList<String>();
@@ -1888,11 +2031,20 @@
     }
 
     void showAllApps(boolean animated) {
-        mAllAppsGrid.zoom(1.0f, animated);
+        hideCustomizationDrawer();
+
+        if (LauncherApplication.isScreenXLarge() && animated) {
+            // Not really a zoom -- this just makes the view visible
+            mAllAppsGrid.zoom(1.0f, false);
+            Animation anim = AnimationUtils.loadAnimation(this, R.anim.all_apps_zoom_in);
+            ((View) mAllAppsGrid).startAnimation(anim);
+        } else {
+            mAllAppsGrid.zoom(1.0f, animated);
+        }
 
         ((View) mAllAppsGrid).setFocusable(true);
         ((View) mAllAppsGrid).requestFocus();
-        
+
         // TODO: fade these two too
         mDeleteZone.setVisibility(View.GONE);
     }
@@ -1939,7 +2091,19 @@
     void closeAllApps(boolean animated) {
         if (mAllAppsGrid.isVisible()) {
             mWorkspace.setVisibility(View.VISIBLE);
-            mAllAppsGrid.zoom(0.0f, animated);
+            if (LauncherApplication.isScreenXLarge() && animated) {
+                Animation anim = AnimationUtils.loadAnimation(this, R.anim.all_apps_zoom_out);
+                anim.setAnimationListener(new AnimationListener() {
+                    public void onAnimationStart(Animation animation) {}
+                    public void onAnimationRepeat(Animation animation) {}
+                    public void onAnimationEnd(Animation animation) {
+                        mAllAppsGrid.zoom(0.0f, false);
+                    }
+                });
+                ((View)mAllAppsGrid).startAnimation(anim);
+            } else {
+                mAllAppsGrid.zoom(0.0f, animated);
+            }
             ((View)mAllAppsGrid).setFocusable(false);
             mWorkspace.getChildAt(mWorkspace.getCurrentScreen()).requestFocus();
         }
@@ -1953,6 +2117,33 @@
         // TODO
     }
 
+    private boolean isCustomizationDrawerVisible() {
+        return mHomeCustomizationDrawer != null && mHomeCustomizationDrawer.getVisibility() == View.VISIBLE;
+    }
+
+    private void showCustomizationDrawer() {
+        if (isAllAppsVisible()) {
+            // TODO: Make a smoother transition here
+            closeAllApps(false);
+        }
+        mHomeCustomizationDrawer.setVisibility(View.VISIBLE);
+        mHomeCustomizationDrawer.startAnimation(AnimationUtils.loadAnimation(this, R.anim.home_customization_drawer_slide_up));
+    }
+
+    private void hideCustomizationDrawer() {
+        if (isCustomizationDrawerVisible()) {
+            Animation slideDownAnimation = AnimationUtils.loadAnimation(this, R.anim.home_customization_drawer_slide_down);
+            slideDownAnimation.setAnimationListener(new Animation.AnimationListener() {
+                public void onAnimationEnd(Animation animation) {
+                    mHomeCustomizationDrawer.setVisibility(View.GONE);
+                }
+                public void onAnimationRepeat(Animation animation) {}
+                public void onAnimationStart(Animation animation) {}
+            });
+            mHomeCustomizationDrawer.startAnimation(slideDownAnimation);
+        }
+    }
+
     /**
      * Displays the shortcut creation dialog and launches, if necessary, the
      * appropriate activity.
@@ -2005,7 +2196,6 @@
 
             switch (which) {
                 case AddAdapter.ITEM_SHORTCUT: {
-                    // Insert extra item to handle picking application
                     pickShortcut();
                     break;
                 }
@@ -2053,7 +2243,7 @@
         }
 
         public void onShow(DialogInterface dialog) {
-            mWaitingForResult = true;            
+            mWaitingForResult = true;
         }
     }
 
diff --git a/src/com/android/launcher2/LauncherAppWidgetInfo.java b/src/com/android/launcher2/LauncherAppWidgetInfo.java
index 8499ebb..32c92aa 100644
--- a/src/com/android/launcher2/LauncherAppWidgetInfo.java
+++ b/src/com/android/launcher2/LauncherAppWidgetInfo.java
@@ -17,25 +17,50 @@
 package com.android.launcher2;
 
 import android.appwidget.AppWidgetHostView;
+import android.content.ComponentName;
 import android.content.ContentValues;
 
 /**
- * Represents a widget, which just contains an identifier.
+ * Represents a widget (either instantiated or about to be) in the Launcher.
  */
 class LauncherAppWidgetInfo extends ItemInfo {
 
     /**
+     * Indicates that the widget hasn't been instantiated yet.
+     */
+    static final int NO_ID = -1;
+
+    /**
      * Identifier for this widget when talking with
      * {@link android.appwidget.AppWidgetManager} for updates.
      */
-    int appWidgetId;
+    int appWidgetId = NO_ID;
+
+    ComponentName providerName;
     
+    // TODO: Are these necessary here?
+    int minWidth = -1;
+    int minHeight = -1;
+
     /**
      * View that holds this widget after it's been created.  This view isn't created
      * until Launcher knows it's needed.
      */
     AppWidgetHostView hostView = null;
 
+    /**
+     * Constructor for use with AppWidgets that haven't been instantiated yet.
+     */
+    LauncherAppWidgetInfo(ComponentName providerName) {
+        itemType = LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET;
+        this.providerName = providerName;
+
+        // Since the widget isn't instantiated yet, we don't know these values. Set them to -1
+        // to indicate that they should be calculated based on the layout and minWidth/minHeight
+        spanX = -1;
+        spanY = -1;
+    }
+
     LauncherAppWidgetInfo(int appWidgetId) {
         itemType = LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET;
         this.appWidgetId = appWidgetId;
@@ -52,7 +77,6 @@
         return "AppWidget(id=" + Integer.toString(appWidgetId) + ")";
     }
 
-
     @Override
     void unbind() {
         super.unbind();
diff --git a/src/com/android/launcher2/LauncherApplication.java b/src/com/android/launcher2/LauncherApplication.java
index eda92d9..ca08378 100644
--- a/src/com/android/launcher2/LauncherApplication.java
+++ b/src/com/android/launcher2/LauncherApplication.java
@@ -20,6 +20,7 @@
 import android.content.ContentResolver;
 import android.content.Intent;
 import android.content.IntentFilter;
+import android.content.res.Configuration;
 import android.database.ContentObserver;
 import android.os.Handler;
 import dalvik.system.VMRuntime;
@@ -27,6 +28,8 @@
 public class LauncherApplication extends Application {
     public LauncherModel mModel;
     public IconCache mIconCache;
+    private static boolean sIsScreenXLarge;
+    private static final boolean ENABLE_ROTATION = false;
 
     @Override
     public void onCreate() {
@@ -36,6 +39,7 @@
 
         mIconCache = new IconCache(this);
         mModel = new LauncherModel(this, mIconCache);
+        sIsScreenXLarge = (getResources().getConfiguration().screenLayout & Configuration.SCREENLAYOUT_SIZE_MASK) == Configuration.SCREENLAYOUT_SIZE_XLARGE;
 
         // Register intent receivers
         IntentFilter filter = new IntentFilter(Intent.ACTION_PACKAGE_ADDED);
@@ -89,4 +93,12 @@
     LauncherModel getModel() {
         return mModel;
     }
+
+    public static boolean isInPlaceRotationEnabled() {
+        return sIsScreenXLarge && ENABLE_ROTATION;
+    }
+
+    public static boolean isScreenXLarge() {
+        return sIsScreenXLarge;
+    }
 }
diff --git a/src/com/android/launcher2/LauncherModel.java b/src/com/android/launcher2/LauncherModel.java
index eb341f6..238fbdf 100644
--- a/src/com/android/launcher2/LauncherModel.java
+++ b/src/com/android/launcher2/LauncherModel.java
@@ -16,6 +16,15 @@
 
 package com.android.launcher2;
 
+import java.lang.ref.WeakReference;
+import java.net.URISyntaxException;
+import java.text.Collator;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.Comparator;
+import java.util.HashMap;
+import java.util.List;
+
 import android.appwidget.AppWidgetManager;
 import android.appwidget.AppWidgetProviderInfo;
 import android.content.BroadcastReceiver;
@@ -23,9 +32,9 @@
 import android.content.ContentProviderClient;
 import android.content.ContentResolver;
 import android.content.ContentValues;
+import android.content.Context;
 import android.content.Intent;
 import android.content.Intent.ShortcutIconResource;
-import android.content.Context;
 import android.content.pm.ActivityInfo;
 import android.content.pm.PackageManager;
 import android.content.pm.ProviderInfo;
@@ -38,20 +47,10 @@
 import android.os.Handler;
 import android.os.HandlerThread;
 import android.os.Parcelable;
-import android.os.RemoteException;
-import android.util.Log;
 import android.os.Process;
+import android.os.RemoteException;
 import android.os.SystemClock;
-
-import java.lang.ref.WeakReference;
-import java.net.URISyntaxException;
-import java.text.Collator;
-import java.util.ArrayList;
-import java.util.Arrays;
-import java.util.Comparator;
-import java.util.Collections;
-import java.util.HashMap;
-import java.util.List;
+import android.util.Log;
 
 import com.android.launcher.R;
 
@@ -91,6 +90,8 @@
 
     private Bitmap mDefaultIcon;
 
+    private static LauncherModelOrientationHelper mModelOrientationHelper;
+
     public interface Callbacks {
         public int getCurrentWorkspaceScreen();
         public void startBinding();
@@ -109,6 +110,7 @@
         mApp = app;
         mAllAppsList = new AllAppsList(iconCache);
         mIconCache = iconCache;
+        mModelOrientationHelper = new LauncherModelOrientationHelper(mApp);
 
         mDefaultIcon = Utilities.createIconBitmap(
                 app.getPackageManager().getDefaultActivityIcon(), app);
@@ -141,11 +143,20 @@
         }
     }
 
+    static int getCurrentOrientation() {
+        return mModelOrientationHelper.getCurrentOrientation();
+    }
+
+    static int getPreviousOrientationRelativeToCurrent() {
+        return mModelOrientationHelper.getPreviousOrientationRelativeToCurrent();
+    }
+
     /**
      * Move an item in the DB to a new <container, screen, cellX, cellY>
      */
     static void moveItemInDatabase(Context context, ItemInfo item, long container, int screen,
             int cellX, int cellY) {
+
         item.container = container;
         item.screen = screen;
         item.cellX = cellX;
@@ -153,10 +164,11 @@
 
         final ContentValues values = new ContentValues();
         final ContentResolver cr = context.getContentResolver();
+        final LauncherModelOrientationHelper.Coordinates coord = mModelOrientationHelper.getCanonicalCoordinates(item);
 
         values.put(LauncherSettings.Favorites.CONTAINER, item.container);
-        values.put(LauncherSettings.Favorites.CELLX, item.cellX);
-        values.put(LauncherSettings.Favorites.CELLY, item.cellY);
+        values.put(LauncherSettings.Favorites.CELLX, coord.x);
+        values.put(LauncherSettings.Favorites.CELLY, coord.y);
         values.put(LauncherSettings.Favorites.SCREEN, item.screen);
 
         cr.update(LauncherSettings.Favorites.getContentUri(item.id, false), values, null, null);
@@ -181,6 +193,48 @@
     }
 
     /**
+     * Returns an ItemInfo array containing all the items in the LauncherModel.
+     * The ItemInfo.id is not set through this function.
+     */
+    static ArrayList<ItemInfo> getItemsInLocalCoordinates(Context context) {
+        ArrayList<ItemInfo> items = new ArrayList<ItemInfo>();
+        final ContentResolver cr = context.getContentResolver();
+        Cursor c = cr.query(LauncherSettings.Favorites.CONTENT_URI, new String[] {
+                LauncherSettings.Favorites.ITEM_TYPE, LauncherSettings.Favorites.CONTAINER,
+                LauncherSettings.Favorites.SCREEN, LauncherSettings.Favorites.CELLX, LauncherSettings.Favorites.CELLY,
+                LauncherSettings.Favorites.SPANX, LauncherSettings.Favorites.SPANY }, null, null, null);
+
+        final int itemTypeIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites.ITEM_TYPE);
+        final int containerIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites.CONTAINER);
+        final int screenIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites.SCREEN);
+        final int cellXIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites.CELLX);
+        final int cellYIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites.CELLY);
+        final int spanXIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites.SPANX);
+        final int spanYIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites.SPANY);
+
+        try {
+            while (c.moveToNext()) {
+                ItemInfo item = new ItemInfo();
+                item.cellX = c.getInt(cellXIndex);
+                item.cellY = c.getInt(cellYIndex);
+                item.spanX = c.getInt(spanXIndex);
+                item.spanY = c.getInt(spanYIndex);
+                item.container = c.getInt(containerIndex);
+                item.itemType = c.getInt(itemTypeIndex);
+                item.screen = c.getInt(screenIndex);
+
+                items.add(item);
+            }
+        } catch (Exception e) {
+            items.clear();
+        } finally {
+            c.close();
+        }
+
+        return items;
+    }
+
+    /**
      * Find a folder in the db, creating the FolderInfo if necessary, and adding it to folderList.
      */
     FolderInfo getFolderById(Context context, HashMap<Long,FolderInfo> folderList, long id) {
@@ -210,12 +264,13 @@
                         break;
                 }
 
+                final LauncherModelOrientationHelper.Coordinates coord = mModelOrientationHelper.getLocalCoordinates(c.getInt(cellXIndex), c.getInt(cellYIndex), 1, 1);
                 folderInfo.title = c.getString(titleIndex);
                 folderInfo.id = id;
                 folderInfo.container = c.getInt(containerIndex);
                 folderInfo.screen = c.getInt(screenIndex);
-                folderInfo.cellX = c.getInt(cellXIndex);
-                folderInfo.cellY = c.getInt(cellYIndex);
+                folderInfo.cellX = coord.x;
+                folderInfo.cellY = coord.y;
 
                 return folderInfo;
             }
@@ -239,9 +294,12 @@
 
         final ContentValues values = new ContentValues();
         final ContentResolver cr = context.getContentResolver();
-
         item.onAddToDatabase(values);
 
+        // update the values to be written with their canonical counterparts
+        final LauncherModelOrientationHelper.Coordinates coord = mModelOrientationHelper.getCanonicalCoordinates(item);
+        item.updateValuesWithCoordinates(values, coord.x, coord.y);
+
         Uri result = cr.insert(notify ? LauncherSettings.Favorites.CONTENT_URI :
                 LauncherSettings.Favorites.CONTENT_URI_NO_NOTIFICATION, values);
 
@@ -251,6 +309,44 @@
     }
 
     /**
+     * Creates a new unique child id, for a given cell span across all layouts.
+     */
+    static int getCanonicalCellLayoutChildId(int cellId, int screen, int localCellX, int localCellY, int spanX, int spanY) {
+        if (LauncherApplication.isInPlaceRotationEnabled()) {
+            LauncherModelOrientationHelper.Coordinates coord = mModelOrientationHelper.getCanonicalCoordinates(localCellX, localCellY, spanX, spanY);
+            return ((screen & 0xFF) << 16) | (coord.x & 0xFF) << 8 | (coord.y & 0xFF);
+        } else {
+            return ((cellId & 0xFF) << 16) | (localCellX & 0xFF) << 8 | (localCellY & 0xFF);
+        }
+    }
+
+    /*
+     * Convenience functions to help return the local device width and height.
+     */
+    static int getLocalDeviceWidth() {
+        return mModelOrientationHelper.getLocalDeviceWidth();
+    }
+
+    static int getLocalDeviceHeight() {
+        return mModelOrientationHelper.getLocalDeviceHeight();
+    }
+
+    /**
+     * Return the new local coordinates given the local coordinates from the previous orientation.
+     */
+    static LauncherModelOrientationHelper.Coordinates getLocalCoordinatesFromPreviousLocalCoordinates(CellLayout.LayoutParams lp) {
+        return mModelOrientationHelper.getLocalCoordinatesFromPreviousLocalCoordinates(lp.cellX, lp.cellY, lp.cellHSpan, lp.cellVSpan);
+    }
+
+    /**
+     * Updates the model orientation helper to take into account the current layout dimensions
+     * when performing local/canonical coordinate transformations.
+     */
+    static void updateWorkspaceLayoutCells(int shortAxisCellCount, int longAxisCellCount) {
+        mModelOrientationHelper.updateDeviceDimensions(shortAxisCellCount, longAxisCellCount);
+    }
+
+    /**
      * Update an item to the database in a specified container.
      */
     static void updateItemInDatabase(Context context, ItemInfo item) {
@@ -259,6 +355,10 @@
 
         item.onAddToDatabase(values);
 
+        // update the values to be written with their canonical counterparts
+        final LauncherModelOrientationHelper.Coordinates coord = mModelOrientationHelper.getCanonicalCoordinates(item);
+        item.updateValuesWithCoordinates(values, coord.x, coord.y);
+
         cr.update(LauncherSettings.Favorites.getContentUri(item.id, false), values, null, null);
     }
 
@@ -293,13 +393,18 @@
         }
     }
 
+    public void updateOrientation() {
+        // we update the LauncherModelOrientationHelper orientation whenever we re-initialize
+        mModelOrientationHelper.updateOrientation(mApp);
+    }
+
     /**
      * Call from the handler for ACTION_PACKAGE_ADDED, ACTION_PACKAGE_REMOVED and
      * ACTION_PACKAGE_CHANGED.
      */
     public void onReceive(Context context, Intent intent) {
         if (DEBUG_LOADERS) Log.d(TAG, "onReceive intent=" + intent);
-        
+
         final String action = intent.getAction();
 
         if (Intent.ACTION_PACKAGE_CHANGED.equals(action)
@@ -343,7 +448,6 @@
             String[] packages = intent.getStringArrayExtra(Intent.EXTRA_CHANGED_PACKAGE_LIST);
             enqueuePackageUpdated(new PackageUpdatedTask(
                         PackageUpdatedTask.OP_UNAVAILABLE, packages));
-
         }
     }
 
@@ -449,7 +553,7 @@
                 }
                 if (DEBUG_LOADERS) {
                     Log.d(TAG, "waited "
-                            + (SystemClock.uptimeMillis()-workspaceWaitTime) 
+                            + (SystemClock.uptimeMillis()-workspaceWaitTime)
                             + "ms for previous step to finish binding");
                 }
             }
@@ -469,7 +573,6 @@
                     android.os.Process.setThreadPriority(mIsLaunching
                             ? Process.THREAD_PRIORITY_DEFAULT : Process.THREAD_PRIORITY_BACKGROUND);
                 }
-
                 if (loadWorkspaceFirst) {
                     if (DEBUG_LOADERS) Log.d(TAG, "step 1: loading workspace");
                     loadAndBindWorkspace();
@@ -571,14 +674,13 @@
             if (item.container != LauncherSettings.Favorites.CONTAINER_DESKTOP) {
                 return true;
             }
-
             for (int x = item.cellX; x < (item.cellX+item.spanX); x++) {
                 for (int y = item.cellY; y < (item.cellY+item.spanY); y++) {
                     if (occupied[item.screen][x][y] != null) {
                         Log.e(TAG, "Error loading shortcut " + item
-                            + " into cell (" + item.screen + ":" 
+                            + " into cell (" + item.screen + ":"
                             + x + "," + y
-                            + ") occupied by " 
+                            + ") occupied by "
                             + occupied[item.screen][x][y]);
                         return false;
                     }
@@ -645,6 +747,11 @@
                 final int displayModeIndex = c.getColumnIndexOrThrow(
                         LauncherSettings.Favorites.DISPLAY_MODE);
 
+
+                LauncherModelOrientationHelper.Coordinates localCoords;
+                int cellX;
+                int cellY;
+
                 ShortcutInfo info;
                 String intentDescription;
                 LauncherAppWidgetInfo appWidgetInfo;
@@ -678,13 +785,17 @@
                             if (info != null) {
                                 updateSavedIcon(context, info, c, iconIndex);
 
+                                cellX = c.getInt(cellXIndex);
+                                cellY = c.getInt(cellYIndex);
+                                localCoords = mModelOrientationHelper.getLocalCoordinates(cellX, cellY, 1, 1);
+
                                 info.intent = intent;
                                 info.id = c.getLong(idIndex);
                                 container = c.getInt(containerIndex);
                                 info.container = container;
                                 info.screen = c.getInt(screenIndex);
-                                info.cellX = c.getInt(cellXIndex);
-                                info.cellY = c.getInt(cellYIndex);
+                                info.cellX = localCoords.x;
+                                info.cellY = localCoords.y;
 
                                 // check & update map of what's occupied
                                 if (!checkItemPlacement(occupied, info)) {
@@ -718,20 +829,22 @@
                             id = c.getLong(idIndex);
                             UserFolderInfo folderInfo = findOrMakeUserFolder(mFolders, id);
 
-                            folderInfo.title = c.getString(titleIndex);
+                            cellX = c.getInt(cellXIndex);
+                            cellY = c.getInt(cellYIndex);
+                            localCoords = mModelOrientationHelper.getLocalCoordinates(cellX, cellY, 1, 1);
 
+                            folderInfo.title = c.getString(titleIndex);
                             folderInfo.id = id;
                             container = c.getInt(containerIndex);
                             folderInfo.container = container;
                             folderInfo.screen = c.getInt(screenIndex);
-                            folderInfo.cellX = c.getInt(cellXIndex);
-                            folderInfo.cellY = c.getInt(cellYIndex);
+                            folderInfo.cellX = localCoords.x;
+                            folderInfo.cellY = localCoords.y;
 
                             // check & update map of what's occupied
                             if (!checkItemPlacement(occupied, folderInfo)) {
                                 break;
                             }
-
                             switch (container) {
                                 case LauncherSettings.Favorites.CONTAINER_DESKTOP:
                                     mItems.add(folderInfo);
@@ -754,7 +867,6 @@
                                 itemsToRemove.add(id);
                             } else {
                                 LiveFolderInfo liveFolderInfo = findOrMakeLiveFolder(mFolders, id);
-
                                 intentDescription = c.getString(intentIndex);
                                 intent = null;
                                 if (intentDescription != null) {
@@ -765,14 +877,18 @@
                                     }
                                 }
 
+                                cellX = c.getInt(cellXIndex);
+                                cellY = c.getInt(cellYIndex);
+                                localCoords = mModelOrientationHelper.getLocalCoordinates(cellX, cellY, 1, 1);
+
                                 liveFolderInfo.title = c.getString(titleIndex);
                                 liveFolderInfo.id = id;
                                 liveFolderInfo.uri = uri;
                                 container = c.getInt(containerIndex);
                                 liveFolderInfo.container = container;
                                 liveFolderInfo.screen = c.getInt(screenIndex);
-                                liveFolderInfo.cellX = c.getInt(cellXIndex);
-                                liveFolderInfo.cellY = c.getInt(cellYIndex);
+                                liveFolderInfo.cellX = localCoords.x;
+                                liveFolderInfo.cellY = localCoords.y;
                                 liveFolderInfo.baseIntent = intent;
                                 liveFolderInfo.displayMode = c.getInt(displayModeIndex);
 
@@ -800,20 +916,26 @@
 
                             final AppWidgetProviderInfo provider =
                                     widgets.getAppWidgetInfo(appWidgetId);
-                            
+
                             if (!isSafeMode && (provider == null || provider.provider == null ||
                                     provider.provider.getPackageName() == null)) {
                                 Log.e(TAG, "Deleting widget that isn't installed anymore: id="
                                         + id + " appWidgetId=" + appWidgetId);
                                 itemsToRemove.add(id);
                             } else {
+                                cellX = c.getInt(cellXIndex);
+                                cellY = c.getInt(cellYIndex);
+                                int spanX = c.getInt(spanXIndex);
+                                int spanY = c.getInt(spanYIndex);
+                                localCoords = mModelOrientationHelper.getLocalCoordinates(cellX, cellY, spanX, spanY);
+
                                 appWidgetInfo = new LauncherAppWidgetInfo(appWidgetId);
                                 appWidgetInfo.id = id;
                                 appWidgetInfo.screen = c.getInt(screenIndex);
-                                appWidgetInfo.cellX = c.getInt(cellXIndex);
-                                appWidgetInfo.cellY = c.getInt(cellYIndex);
-                                appWidgetInfo.spanX = c.getInt(spanXIndex);
-                                appWidgetInfo.spanY = c.getInt(spanYIndex);
+                                appWidgetInfo.cellX = localCoords.x;
+                                appWidgetInfo.cellY = localCoords.y;
+                                appWidgetInfo.spanX = spanX;
+                                appWidgetInfo.spanY = spanY;
 
                                 container = c.getInt(containerIndex);
                                 if (container != LauncherSettings.Favorites.CONTAINER_DESKTOP) {
diff --git a/src/com/android/launcher2/LauncherModelOrientationHelper.java b/src/com/android/launcher2/LauncherModelOrientationHelper.java
new file mode 100644
index 0000000..6a9473d
--- /dev/null
+++ b/src/com/android/launcher2/LauncherModelOrientationHelper.java
@@ -0,0 +1,180 @@
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.launcher2;
+
+import android.content.Context;
+import android.view.Display;
+import android.view.Surface;
+import android.view.WindowManager;
+
+public class LauncherModelOrientationHelper {
+
+    static final String TAG = "LauncherModelOrientationHelper";
+
+    public class Coordinates {
+        public Coordinates(int newX, int newY) {
+            x = newX;
+            y = newY;
+        }
+
+        public int x;
+        public int y;
+    }
+
+    private int mOrientation;
+    private int mLocalDeviceWidth;
+    private int mLocalDeviceHeight;
+    private int mPreviousOrientation;
+    private int mPreviousLocalDeviceWidth;
+    private int mPreviousLocalDeviceHeight;
+    private int mCanonicalDeviceWidth;
+    private int mCanonicalDeviceHeight;
+
+    protected LauncherModelOrientationHelper(Context ctx) {
+        updateOrientation(ctx);
+    }
+
+    public int getCurrentOrientation() {
+        return mOrientation;
+    }
+
+    public int getPreviousOrientationRelativeToCurrent() {
+        int orientationDifference = -(mOrientation - mPreviousOrientation);
+
+        if (Math.abs(orientationDifference) > 180) {
+            orientationDifference = (int) -Math.signum(orientationDifference)
+                    * (360 - Math.abs(orientationDifference));
+        }
+        return orientationDifference;
+    }
+
+    private void updateLocalDeviceDimensions() {
+        mPreviousLocalDeviceHeight = mLocalDeviceHeight;
+        mPreviousLocalDeviceWidth = mLocalDeviceWidth;
+
+        if (mOrientation % 180 != 0) {
+            mLocalDeviceWidth = mCanonicalDeviceHeight;
+            mLocalDeviceHeight = mCanonicalDeviceWidth;
+        } else {
+            mLocalDeviceWidth = mCanonicalDeviceWidth;
+            mLocalDeviceHeight = mCanonicalDeviceHeight;
+        }
+    }
+
+    public void updateOrientation(Context ctx) {
+        Display display = ((WindowManager) ctx
+                .getSystemService(Context.WINDOW_SERVICE)).getDefaultDisplay();
+
+        mPreviousOrientation = mOrientation;
+        switch (display.getRotation()) {
+        case Surface.ROTATION_0:
+            mOrientation = 0;
+            break;
+        case Surface.ROTATION_90:
+            mOrientation = 90;
+            break;
+        case Surface.ROTATION_180:
+            mOrientation = 180;
+            break;
+        case Surface.ROTATION_270:
+            mOrientation = 270;
+            break;
+        }
+        updateLocalDeviceDimensions();
+    }
+
+    public void updateDeviceDimensions(int deviceWidth, int deviceHeight) {
+        mCanonicalDeviceWidth = deviceWidth;
+        mCanonicalDeviceHeight = deviceHeight;
+
+        updateLocalDeviceDimensions();
+    }
+
+    public Coordinates getLocalCoordinatesFromPreviousLocalCoordinates(
+            int cellX, int cellY, int spanX, int spanY) {
+        return getTransformedLayoutParams(cellX, cellY, spanX, spanY,
+                getPreviousOrientationRelativeToCurrent(),
+                mPreviousLocalDeviceWidth, mPreviousLocalDeviceHeight);
+    }
+
+    public Coordinates getCanonicalCoordinates(ItemInfo localItem) {
+        return getTransformedLayoutParams(localItem.cellX, localItem.cellY,
+                localItem.spanX, localItem.spanY, mOrientation,
+                mLocalDeviceWidth, mLocalDeviceHeight);
+    }
+
+    public Coordinates getCanonicalCoordinates(int cellX, int cellY,
+            int spanX, int spanY) {
+        return getTransformedLayoutParams(cellX, cellY, spanX, spanY,
+                mOrientation, mLocalDeviceWidth, mLocalDeviceHeight);
+    }
+
+    public Coordinates getLocalCoordinates(int cellX, int cellY, int spanX,
+            int spanY) {
+        return getTransformedLayoutParams(cellX, cellY, spanX, spanY,
+                -mOrientation, mCanonicalDeviceWidth, mCanonicalDeviceHeight);
+    }
+
+    public int getLocalDeviceWidth() {
+        return mLocalDeviceWidth;
+    }
+
+    public int getLocalDeviceHeight() {
+        return mLocalDeviceHeight;
+    }
+
+    /**
+     * Transform the coordinates based on the current device rotation
+     */
+    private Coordinates getTransformedLayoutParams(int cellX, int cellY,
+            int spanX, int spanY, int deviceRotationClockwise,
+            int initialDeviceWidth, int initialDeviceHeight) {
+        if (LauncherApplication.isScreenXLarge()) {
+            int x = cellX;
+            int y = cellY;
+            int width = spanX;
+            int height = spanY;
+            int finalDeviceWidth = initialDeviceWidth;
+            int finalDeviceHeight = initialDeviceHeight;
+
+            // item rotation is opposite of device rotation to maintain an
+            // absolute
+            // spatial layout
+            double phi = Math.toRadians(-deviceRotationClockwise);
+
+            double x1 = x + width / 2.0f - initialDeviceWidth / 2.0f;
+            double y1 = y + height / 2.0f - initialDeviceHeight / 2.0f;
+
+            // multiply x and y by a clockwise rotation matrix
+            double x2 = x1 * Math.cos(phi) + y1 * Math.sin(phi);
+            double y2 = -x1 * Math.sin(phi) + y1 * Math.cos(phi);
+
+            // Get the rotated device dimensions
+            if (deviceRotationClockwise % 180 != 0) {
+                finalDeviceWidth = initialDeviceHeight;
+                finalDeviceHeight = initialDeviceWidth;
+            }
+
+            x2 = x2 + finalDeviceWidth / 2.0f - width / 2.0f;
+            y2 = y2 + finalDeviceHeight / 2.0f - height / 2.0f;
+
+            return new Coordinates((int) Math.round(x2), (int) Math.round(y2));
+        } else {
+            return new Coordinates(cellX, cellY);
+        }
+    }
+}
diff --git a/src/com/android/launcher2/LiveFolderInfo.java b/src/com/android/launcher2/LiveFolderInfo.java
index 7d0a0f5..74b0217 100644
--- a/src/com/android/launcher2/LiveFolderInfo.java
+++ b/src/com/android/launcher2/LiveFolderInfo.java
@@ -18,7 +18,6 @@
 
 import android.content.ContentValues;
 import android.content.Intent;
-import android.graphics.drawable.Drawable;
 import android.graphics.Bitmap;
 import android.net.Uri;
 
diff --git a/src/com/android/launcher2/ShortcutChooser.java b/src/com/android/launcher2/ShortcutChooser.java
new file mode 100644
index 0000000..1e3e5d0
--- /dev/null
+++ b/src/com/android/launcher2/ShortcutChooser.java
@@ -0,0 +1,37 @@
+package com.android.launcher2;
+
+import com.android.launcher.R;
+
+import android.content.ComponentName;
+import android.content.Context;
+import android.content.Intent;
+import android.content.pm.ResolveInfo;
+import android.util.AttributeSet;
+import android.view.View;
+import android.widget.AdapterView;
+
+public class ShortcutChooser extends HomeCustomizationItemGallery {
+
+    public ShortcutChooser(Context context, AttributeSet attrs) {
+        super(context, attrs);
+    }
+
+    public boolean onItemLongClick(AdapterView<?> parent, View view, int position, long id) {
+        // todo: this code sorta overlaps with other places
+        ResolveInfo info = (ResolveInfo)getAdapter().getItem(position);
+        mLauncher.prepareAddItemFromHomeCustomizationDrawer();
+
+        Intent createShortcutIntent = new Intent(Intent.ACTION_CREATE_SHORTCUT);
+        if (info.labelRes == R.string.group_applications) {
+            // Create app shortcuts is a special built-in case of shortcuts
+            createShortcutIntent.putExtra(
+                    Intent.EXTRA_SHORTCUT_NAME,getContext().getString(R.string.group_applications));
+        } else {
+            ComponentName name = new ComponentName(info.activityInfo.packageName, info.activityInfo.name);
+            createShortcutIntent.setComponent(name);
+        }
+        mLauncher.processShortcut(createShortcutIntent);
+
+        return true;
+    }
+}
diff --git a/src/com/android/launcher2/ShortcutInfo.java b/src/com/android/launcher2/ShortcutInfo.java
index 5c322ba..b0da3a5 100644
--- a/src/com/android/launcher2/ShortcutInfo.java
+++ b/src/com/android/launcher2/ShortcutInfo.java
@@ -16,16 +16,14 @@
 
 package com.android.launcher2;
 
+import java.util.ArrayList;
+
 import android.content.ComponentName;
 import android.content.ContentValues;
-import android.content.Context;
 import android.content.Intent;
 import android.graphics.Bitmap;
-import android.graphics.drawable.Drawable;
 import android.util.Log;
 
-import java.util.ArrayList;
-
 /**
  * Represents a launchable icon on the workspaces and in folders.
  */
diff --git a/src/com/android/launcher2/ShortcutListAdapter.java b/src/com/android/launcher2/ShortcutListAdapter.java
new file mode 100644
index 0000000..be05ca4
--- /dev/null
+++ b/src/com/android/launcher2/ShortcutListAdapter.java
@@ -0,0 +1,26 @@
+package com.android.launcher2;
+
+import com.android.launcher.R;
+
+import android.content.Context;
+import android.content.Intent;
+import android.content.Intent.ShortcutIconResource;
+import android.content.pm.ResolveInfo;
+
+import java.util.ArrayList;
+
+
+public class ShortcutListAdapter extends IntentListAdapter {
+
+    public ShortcutListAdapter(Context context, String actionFilter) {
+        super(context, actionFilter);
+
+        // Manually create a separate entry for creating an Application shortcut
+        ResolveInfo folder = new ResolveInfo();
+
+        folder.icon = R.drawable.ic_launcher_application;
+        folder.labelRes = R.string.group_applications;
+        folder.resolvePackageName = context.getPackageName();
+        mIntentList.add(0, folder);
+    }
+}
diff --git a/src/com/android/launcher2/ShortcutsAdapter.java b/src/com/android/launcher2/ShortcutsAdapter.java
index 19c3af0..93c500a 100644
--- a/src/com/android/launcher2/ShortcutsAdapter.java
+++ b/src/com/android/launcher2/ShortcutsAdapter.java
@@ -16,16 +16,15 @@
 
 package com.android.launcher2;
 
+import java.util.ArrayList;
+
 import android.content.Context;
-import android.content.pm.PackageManager;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.ArrayAdapter;
 import android.widget.TextView;
 
-import java.util.ArrayList;
-
 import com.android.launcher.R;
 
 /**
diff --git a/src/com/android/launcher2/SymmetricalLinearTween.java b/src/com/android/launcher2/SymmetricalLinearTween.java
index 2e0ed8f..da02242 100644
--- a/src/com/android/launcher2/SymmetricalLinearTween.java
+++ b/src/com/android/launcher2/SymmetricalLinearTween.java
@@ -17,9 +17,7 @@
 package com.android.launcher2;
 
 import android.os.Handler;
-import android.os.Message;
 import android.os.SystemClock;
-import android.util.Log;
 
 /**
  * Provides an animation between 0.0f and 1.0f over a given duration.
diff --git a/src/com/android/launcher2/UserFolder.java b/src/com/android/launcher2/UserFolder.java
index d49c27a..b46e924 100644
--- a/src/com/android/launcher2/UserFolder.java
+++ b/src/com/android/launcher2/UserFolder.java
@@ -3,10 +3,8 @@
 import android.content.Context;
 import android.graphics.Rect;
 import android.util.AttributeSet;
-import android.util.Log;
 import android.view.LayoutInflater;
 import android.view.View;
-import android.widget.ArrayAdapter;
 
 import com.android.launcher.R;
 
@@ -91,4 +89,10 @@
         super.onOpen();
         requestFocus();
     }
+
+    @Override
+    public DropTarget getDropTargetDelegate(DragSource source, int x, int y, int xOffset, int yOffset,
+            DragView dragView, Object dragInfo) {
+        return null;
+    }
 }
diff --git a/src/com/android/launcher2/Utilities.java b/src/com/android/launcher2/Utilities.java
index 757e48e..c67ff99 100644
--- a/src/com/android/launcher2/Utilities.java
+++ b/src/com/android/launcher2/Utilities.java
@@ -16,9 +16,8 @@
 
 package com.android.launcher2;
 
-import android.graphics.drawable.BitmapDrawable;
-import android.graphics.drawable.Drawable;
-import android.graphics.drawable.PaintDrawable;
+import android.content.Context;
+import android.content.res.Resources;
 import android.graphics.Bitmap;
 import android.graphics.BlurMaskFilter;
 import android.graphics.Canvas;
@@ -26,19 +25,19 @@
 import android.graphics.ColorMatrixColorFilter;
 import android.graphics.Paint;
 import android.graphics.PaintFlagsDrawFilter;
-import android.graphics.PixelFormat;
 import android.graphics.PorterDuff;
 import android.graphics.Rect;
 import android.graphics.RectF;
 import android.graphics.TableMaskFilter;
 import android.graphics.Typeface;
-import android.text.Layout.Alignment;
+import android.graphics.drawable.BitmapDrawable;
+import android.graphics.drawable.Drawable;
+import android.graphics.drawable.PaintDrawable;
 import android.text.StaticLayout;
 import android.text.TextPaint;
+import android.text.Layout.Alignment;
 import android.util.DisplayMetrics;
 import android.util.Log;
-import android.content.res.Resources;
-import android.content.Context;
 
 import com.android.launcher.R;
 
diff --git a/src/com/android/launcher2/WidgetChooser.java b/src/com/android/launcher2/WidgetChooser.java
new file mode 100644
index 0000000..ea6888e
--- /dev/null
+++ b/src/com/android/launcher2/WidgetChooser.java
@@ -0,0 +1,47 @@
+package com.android.launcher2;
+
+import android.appwidget.AppWidgetProviderInfo;
+import android.content.Context;
+import android.graphics.Bitmap;
+import android.graphics.drawable.BitmapDrawable;
+import android.graphics.drawable.Drawable;
+import android.util.AttributeSet;
+import android.view.View;
+import android.widget.AdapterView;
+import android.widget.TextView;
+
+public class WidgetChooser extends HomeCustomizationItemGallery implements DragSource {
+    private DragController mDragController;
+
+    public WidgetChooser(Context context, AttributeSet attrs) {
+        super(context, attrs);
+    }
+
+    public void setDragController(DragController dragger) {
+        mDragController = dragger;
+    }
+
+    public boolean onItemLongClick(AdapterView<?> parent, View view, int position, long id) {
+        Drawable[] drawables = ((TextView)view).getCompoundDrawables();
+        Bitmap bmp = ((BitmapDrawable)drawables[1]).getBitmap();
+        final int w = bmp.getWidth();
+        final int h = bmp.getHeight();
+
+        // We don't really have an accurate location to use.  This will do.
+        int screenX = mMotionDownRawX - (w / 2);
+        int screenY = mMotionDownRawY - h;
+
+        AppWidgetProviderInfo info = (AppWidgetProviderInfo)getAdapter().getItem(position);
+        LauncherAppWidgetInfo dragInfo = new LauncherAppWidgetInfo(info.provider);
+        // TODO: Is this really the best place to do this?
+        dragInfo.minWidth = info.minWidth;
+        dragInfo.minHeight = info.minHeight;
+        mDragController.startDrag(bmp, screenX, screenY,
+                0, 0, w, h, this, dragInfo, DragController.DRAG_ACTION_COPY);
+        return true;
+    }
+
+    public void onDropCompleted(View target, boolean success) {
+    }
+}
+
diff --git a/src/com/android/launcher2/WidgetListAdapter.java b/src/com/android/launcher2/WidgetListAdapter.java
new file mode 100644
index 0000000..597ecf9
--- /dev/null
+++ b/src/com/android/launcher2/WidgetListAdapter.java
@@ -0,0 +1,131 @@
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.launcher2;
+
+import com.android.launcher.R;
+
+import android.appwidget.AppWidgetManager;
+import android.appwidget.AppWidgetProviderInfo;
+import android.content.Context;
+import android.content.pm.PackageManager;
+import android.content.res.Resources;
+import android.graphics.Bitmap;
+import android.graphics.Bitmap.Config;
+import android.graphics.Canvas;
+import android.graphics.Rect;
+import android.graphics.Region.Op;
+import android.graphics.drawable.BitmapDrawable;
+import android.graphics.drawable.Drawable;
+import android.util.Log;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.BaseAdapter;
+import android.widget.TextView;
+
+import java.util.List;
+
+public class WidgetListAdapter extends BaseAdapter {
+    private final Launcher mLauncher;
+    private List<AppWidgetProviderInfo> mWidgets;
+    private final Canvas mCanvas = new Canvas();
+
+    private final int[] mTempSize = new int[2];
+    private final Rect mTempRect = new Rect();
+
+    private static final String TAG = "Launcher.WidgetGalleryAdapter";
+
+    WidgetListAdapter(Launcher launcher) {
+        mLauncher = launcher;
+        mWidgets = AppWidgetManager.getInstance(launcher).getInstalledProviders();
+    }
+
+    public int getCount() {
+        return mWidgets.size();
+    }
+
+    public Object getItem(int position) {
+        return mWidgets.get(position);
+    }
+
+    public long getItemId(int position) {
+        return position;
+    }
+
+    public View getView(int position, View convertView, ViewGroup parent) {
+        TextView textView;
+
+        if (convertView == null) {
+            LayoutInflater inflater =
+                (LayoutInflater)mLauncher.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
+            textView = (TextView) inflater.inflate(
+                    R.layout.home_customization_drawer_item, parent, false);
+        } else {
+            textView = (TextView) convertView;
+        }
+
+        AppWidgetProviderInfo info = mWidgets.get(position);
+        PackageManager packageManager = mLauncher.getPackageManager();
+        String packageName = info.provider.getPackageName();
+        Drawable drawable = null;
+        if (info.previewImage != 0) {
+            drawable = packageManager.getDrawable(packageName, info.previewImage, null);
+            if (drawable == null) {
+                Log.w(TAG, "Can't load icon drawable 0x" + Integer.toHexString(info.icon)
+                        + " for provider: " + info.provider);
+            }
+        }
+        // If we don't have a preview image, create a default one
+        if (drawable == null) {
+            Resources resources = mLauncher.getResources();
+
+            // Determine the size the widget will take in the layout
+            mLauncher.getWorkspace().estimateChildSize(info.minWidth, info.minHeight, mTempSize);
+
+            // Create a new bitmap to hold the widget preview
+            final int width = mTempSize[0];
+            final int height = mTempSize[1];
+            Bitmap bitmap = Bitmap.createBitmap(width, height, Config.ARGB_8888);
+            mCanvas.setBitmap(bitmap);
+            // For some reason, we must re-set the clip rect here, otherwise it will be wrong
+            mCanvas.clipRect(0, 0, width, height, Op.REPLACE);
+
+            Drawable background = resources.getDrawable(R.drawable.default_widget_preview);
+            background.setBounds(0, 0, width, height);
+            background.draw(mCanvas);
+
+            // Draw the icon vertically centered, flush left
+            Drawable icon = packageManager.getDrawable(packageName, info.icon, null);
+            background.getPadding(mTempRect);
+
+            final int left = mTempRect.left;
+            final int top = (height - icon.getIntrinsicHeight()) / 2;
+            icon.setBounds(
+                    left, top, left + icon.getIntrinsicWidth(), top + icon.getIntrinsicHeight());
+            icon.draw(mCanvas);
+
+            drawable = new BitmapDrawable(resources, bitmap);
+        }
+        drawable.setBounds(0, 0, drawable.getIntrinsicWidth(), drawable.getIntrinsicHeight());
+        textView.setCompoundDrawables(null, drawable, null, null);
+        textView.setText(info.label);
+        // Store the widget info on the associated view so we can easily fetch it later
+        textView.setTag(info);
+
+        return textView;
+    }
+}
diff --git a/src/com/android/launcher2/Workspace.java b/src/com/android/launcher2/Workspace.java
index c337c30..79fb4a9 100644
--- a/src/com/android/launcher2/Workspace.java
+++ b/src/com/android/launcher2/Workspace.java
@@ -16,8 +16,7 @@
 
 package com.android.launcher2;
 
-import java.util.ArrayList;
-import java.util.HashSet;
+import com.android.launcher.R;
 
 import android.app.WallpaperManager;
 import android.appwidget.AppWidgetManager;
@@ -29,6 +28,7 @@
 import android.content.pm.ProviderInfo;
 import android.content.res.TypedArray;
 import android.graphics.Canvas;
+import android.graphics.Paint;
 import android.graphics.Rect;
 import android.graphics.drawable.Drawable;
 import android.net.Uri;
@@ -43,29 +43,35 @@
 import android.view.ViewConfiguration;
 import android.view.ViewGroup;
 import android.view.ViewParent;
+import android.view.animation.Animation;
+import android.view.animation.Animation.AnimationListener;
 import android.view.animation.Interpolator;
+import android.view.animation.RotateAnimation;
 import android.widget.Scroller;
 import android.widget.TextView;
+import android.widget.Toast;
 
-import com.android.launcher.R;
+import java.util.ArrayList;
+import java.util.HashSet;
 
 /**
- * The workspace is a wide area with a wallpaper and a finite number of screens. Each
- * screen contains a number of icons, folders or widgets the user can interact with.
- * A workspace is meant to be used with a fixed width only.
+ * The workspace is a wide area with a wallpaper and a finite number of screens.
+ * Each screen contains a number of icons, folders or widgets the user can
+ * interact with. A workspace is meant to be used with a fixed width only.
  */
 public class Workspace extends ViewGroup implements DropTarget, DragSource, DragScroller {
     @SuppressWarnings({"UnusedDeclaration"})
     private static final String TAG = "Launcher.Workspace";
     private static final int INVALID_SCREEN = -1;
-    
+
     /**
-     * The velocity at which a fling gesture will cause us to snap to the next screen
+     * The velocity at which a fling gesture will cause us to snap to the next
+     * screen
      */
     private static final int SNAP_VELOCITY = 600;
 
     private final WallpaperManager mWallpaperManager;
-    
+
     private int mDefaultScreen;
 
     private boolean mFirstLayout = true;
@@ -79,31 +85,37 @@
      * CellInfo for the cell that is currently being dragged
      */
     private CellLayout.CellInfo mDragInfo;
-    
+
     /**
      * Target drop area calculated during last acceptDrop call.
      */
     private int[] mTargetCell = null;
 
+    /**
+     * The CellLayout that is currently being dragged over
+     */
+    private CellLayout mDragTargetLayout = null;
+
     private float mLastMotionX;
     private float mLastMotionY;
-    
+
     private final static int TOUCH_STATE_REST = 0;
     private final static int TOUCH_STATE_SCROLLING = 1;
 
     private int mTouchState = TOUCH_STATE_REST;
 
+    private OnTouchListener mInterceptTouchListener;
     private OnLongClickListener mLongClickListener;
 
     private Launcher mLauncher;
     private IconCache mIconCache;
     private DragController mDragController;
-    
+
     /**
      * Cache of vacant cells, used during drag events and invalidated as needed.
      */
     private CellLayout.CellInfo mVacantCache = null;
-    
+
     private int[] mTempCell = new int[2];
     private int[] mTempEstimate = new int[2];
 
@@ -111,14 +123,14 @@
 
     private int mTouchSlop;
     private int mMaximumVelocity;
-    
+
     private static final int INVALID_POINTER = -1;
 
     private int mActivePointerId = INVALID_POINTER;
-    
+
     private Drawable mPreviousIndicator;
     private Drawable mNextIndicator;
-    
+
     private static final float NANOTIME_DIV = 1000000000.0f;
     private static final float SMOOTHING_SPEED = 0.75f;
     private static final float SMOOTHING_CONSTANT = (float) (0.016 / Math.log(SMOOTHING_SPEED));
@@ -129,7 +141,9 @@
 
     private static final float BASELINE_FLING_VELOCITY = 2500.f;
     private static final float FLING_VELOCITY_INFLUENCE = 0.4f;
-    
+
+    private Paint mDropIndicatorPaint;
+
     private static class WorkspaceOvershootInterpolator implements Interpolator {
         private static final float DEFAULT_TENSION = 1.3f;
         private float mTension;
@@ -137,7 +151,7 @@
         public WorkspaceOvershootInterpolator() {
             mTension = DEFAULT_TENSION;
         }
-        
+
         public void setDistance(int distance) {
             mTension = distance > 0 ? DEFAULT_TENSION / distance : DEFAULT_TENSION;
         }
@@ -153,7 +167,7 @@
             return t * t * ((mTension + 1) * t + mTension) + 1.0f;
         }
     }
-    
+
     /**
      * Used to inflate the Workspace from XML.
      *
@@ -175,11 +189,16 @@
         super(context, attrs, defStyle);
 
         mWallpaperManager = WallpaperManager.getInstance(context);
-        
-        TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.Workspace, defStyle, 0);
+
+        TypedArray a = context.obtainStyledAttributes(attrs,
+                R.styleable.Workspace, defStyle, 0);
+        int canonicalDeviceWidth = a.getInt(R.styleable.Workspace_canonicalDeviceWidth, 4);
+        int canonicalDeviceHeight = a.getInt(R.styleable.Workspace_canonicalDeviceHeight, 4);
         mDefaultScreen = a.getInt(R.styleable.Workspace_defaultScreen, 1);
         a.recycle();
 
+        LauncherModel.updateWorkspaceLayoutCells(canonicalDeviceWidth,
+                canonicalDeviceHeight);
         setHapticFeedbackEnabled(false);
         initWorkspace();
     }
@@ -249,9 +268,10 @@
         int count = currentScreen.getChildCount();
         for (int i = 0; i < count; i++) {
             View child = currentScreen.getChildAt(i);
-            CellLayout.LayoutParams lp = (CellLayout.LayoutParams) child.getLayoutParams();
-            if (lp.cellHSpan == 4 && lp.cellVSpan == 4 && child instanceof Folder) {
-                return (Folder) child;
+            if (child instanceof Folder) {
+                Folder folder = (Folder) child;
+                if (folder.getInfo().opened)
+                    return folder;
             }
         }
         return null;
@@ -266,9 +286,12 @@
             int count = currentScreen.getChildCount();
             for (int i = 0; i < count; i++) {
                 View child = currentScreen.getChildAt(i);
-                CellLayout.LayoutParams lp = (CellLayout.LayoutParams) child.getLayoutParams();
-                if (lp.cellHSpan == 4 && lp.cellVSpan == 4 && child instanceof Folder) {
-                    folders.add((Folder) child);
+                CellLayout.LayoutParams lp = (CellLayout.LayoutParams) child
+                        .getLayoutParams();
+                if (child instanceof Folder) {
+                    Folder folder = (Folder) child;
+                    if (folder.getInfo().opened)
+                        folders.add(folder);
                     break;
                 }
             }
@@ -296,11 +319,15 @@
      * @param currentScreen
      */
     void setCurrentScreen(int currentScreen) {
-        if (!mScroller.isFinished()) mScroller.abortAnimation();
+        if (!mScroller.isFinished())
+            mScroller.abortAnimation();
         clearVacantCache();
         mCurrentScreen = Math.max(0, Math.min(currentScreen, getChildCount() - 1));
-        mPreviousIndicator.setLevel(mCurrentScreen);
-        mNextIndicator.setLevel(mCurrentScreen);
+        if (mPreviousIndicator != null) {
+            mPreviousIndicator.setLevel(mCurrentScreen);
+            mNextIndicator.setLevel(mCurrentScreen);
+        }
+
         scrollTo(mCurrentScreen * getWidth(), 0);
         updateWallpaperOffset();
         invalidate();
@@ -350,6 +377,85 @@
         addInScreen(child, screen, x, y, spanX, spanY, false);
     }
 
+    void addInFullScreen(View child, int screen) {
+        addInScreen(child, screen, 0, 0, -1, -1);
+    }
+
+    public void rotateCurrentScreensChildren() {
+
+        // close all the folders first
+        final ArrayList<Folder> openFolders = getOpenFolders();
+
+        WorkspaceOvershootInterpolator wi = new WorkspaceOvershootInterpolator();
+        RotateAnimation ra = new RotateAnimation((float) LauncherModel
+                .getPreviousOrientationRelativeToCurrent(), 0,
+                Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_SELF,
+                0.5f);
+        ra.setInterpolator(wi);
+        CellLayout currentScreen = (CellLayout) getChildAt(mCurrentScreen);
+        ra.setStartOffset(150);
+        ra.setDuration(650 + (int) (Math.random() * 400) - 200);
+
+        CellLayout.CellLayoutAnimationController animationController = new CellLayout.CellLayoutAnimationController(
+                ra, 0.0f);
+        currentScreen.setLayoutAnimation(animationController);
+        currentScreen.setLayoutAnimationListener(new AnimationListener() {
+            public void onAnimationStart(Animation animation) {
+                // do nothing
+            }
+
+            public void onAnimationRepeat(Animation animation) {
+                // do nothing
+            }
+
+            public void onAnimationEnd(Animation animation) {
+                for (int j = 0; j < openFolders.size(); ++j) {
+                    Folder folder = openFolders.get(j);
+                    if (!folder.getInfo().opened) {
+                        mLauncher.openFolder(folder.getInfo());
+                    }
+                }
+            }
+        });
+        animationController.start();
+
+        for (int j = 0; j < openFolders.size(); ++j) {
+            mLauncher.closeFolder(openFolders.get(j));
+        }
+    }
+
+    public void refreshWorkspaceChildren() {
+        final int count = getChildCount();
+        View child;
+
+        CellLayout.LayoutParams lp;
+        int widthMeasureSpec = MeasureSpec.makeMeasureSpec(LauncherModel
+                .getLocalDeviceWidth(), MeasureSpec.EXACTLY);
+        int heightMeasureSpec = MeasureSpec.makeMeasureSpec(LauncherModel
+                .getLocalDeviceHeight(), MeasureSpec.EXACTLY);
+
+        clearVacantCache();
+
+        for (int i = 0; i < count; i++) {
+            final CellLayout layout = (CellLayout) getChildAt(i);
+            int numChildren = layout.getChildCount();
+
+            // save reference to all current children
+            for (int j = 0; j < numChildren; j++) {
+                child = layout.getChildAt(j);
+
+                lp = (CellLayout.LayoutParams) child.getLayoutParams();
+                LauncherModelOrientationHelper.Coordinates localCoord = LauncherModel
+                        .getLocalCoordinatesFromPreviousLocalCoordinates(lp);
+
+                lp.cellX = localCoord.x;
+                lp.cellY = localCoord.y;
+            }
+
+            layout.measure(widthMeasureSpec, heightMeasureSpec);
+        }
+    }
+
     /**
      * Adds the specified child in the specified screen. The position and dimension of
      * the child are defined by x, y, spanX and spanY.
@@ -381,13 +487,22 @@
             lp.cellHSpan = spanX;
             lp.cellVSpan = spanY;
         }
-        group.addView(child, insert ? 0 : -1, lp);
+
+        // Get the canonical child id to uniquely represent this view in this screen
+        int childId = LauncherModel.getCanonicalCellLayoutChildId(child.getId(), screen, x, y, spanX, spanY);
+        if (!group.addViewToCellLayout(child, insert ? 0 : -1, childId, lp)) {
+            // TODO: This branch occurs when the workspace is adding views
+            // outside of the defined grid
+            // maybe we should be deleting these items from the LauncherModel?
+            Log.w(TAG, "Failed to add to item at (" + lp.cellX + "," + lp.cellY + ") to CellLayout");
+        }
+
         if (!(child instanceof Folder)) {
             child.setHapticFeedbackEnabled(false);
             child.setOnLongClickListener(mLongClickListener);
         }
         if (child instanceof DropTarget) {
-            mDragController.addDropTarget((DropTarget)child);
+            mDragController.addDropTarget((DropTarget) child);
         }
     }
 
@@ -406,6 +521,10 @@
         }
     }
 
+    public void setOnInterceptTouchListener(View.OnTouchListener listener) {
+        mInterceptTouchListener = listener;
+    }
+
     /**
      * Registers the specified listener on each screen contained in this workspace.
      *
@@ -432,14 +551,14 @@
                     Math.max(0.f, Math.min(mScrollX/(float)scrollRange, 1.f)), 0);
         }
     }
-    
+
     @Override
     public void scrollTo(int x, int y) {
         super.scrollTo(x, y);
         mTouchX = x;
         mSmoothingTime = System.nanoTime() / NANOTIME_DIV;
     }
-    
+
     @Override
     public void computeScroll() {
         if (mScroller.computeScrollOffset()) {
@@ -450,8 +569,10 @@
             postInvalidate();
         } else if (mNextScreen != INVALID_SCREEN) {
             mCurrentScreen = Math.max(0, Math.min(mNextScreen, getChildCount() - 1));
-            mPreviousIndicator.setLevel(mCurrentScreen);
-            mNextIndicator.setLevel(mCurrentScreen);
+            if (mPreviousIndicator != null) {
+                mPreviousIndicator.setLevel(mCurrentScreen);
+                mNextIndicator.setLevel(mCurrentScreen);
+            }
             Launcher.setScreen(mCurrentScreen);
             mNextScreen = INVALID_SCREEN;
             clearChildrenCache();
@@ -529,7 +650,6 @@
             getChildAt(i).measure(widthMeasureSpec, heightMeasureSpec);
         }
 
-
         if (mFirstLayout) {
             setHorizontalScrollBarEnabled(false);
             scrollTo(mCurrentScreen * width, 0);
@@ -552,6 +672,12 @@
                 childLeft += childWidth;
             }
         }
+
+        if (LauncherApplication.isInPlaceRotationEnabled()) {
+            // When the device is rotated, the scroll position of the current screen
+            // needs to be refreshed
+            setCurrentScreen(getCurrentScreen());
+        }
     }
 
     @Override
@@ -611,7 +737,7 @@
                     if (mCurrentScreen > 0) {
                         getChildAt(mCurrentScreen - 1).addFocusables(views, direction);
                     }
-                } else if (direction == View.FOCUS_RIGHT){
+                } else if (direction == View.FOCUS_RIGHT) {
                     if (mCurrentScreen < getChildCount() - 1) {
                         getChildAt(mCurrentScreen + 1).addFocusables(views, direction);
                     }
@@ -634,6 +760,9 @@
 
     @Override
     public boolean onInterceptTouchEvent(MotionEvent ev) {
+        if (mInterceptTouchListener != null && mInterceptTouchListener.onTouch(this, ev)) {
+            return true;
+        }
         final boolean workspaceLocked = mLauncher.isWorkspaceLocked();
         final boolean allAppsVisible = mLauncher.isAllAppsVisible();
         if (workspaceLocked || allAppsVisible) {
@@ -660,7 +789,7 @@
             mVelocityTracker = VelocityTracker.obtain();
         }
         mVelocityTracker.addMovement(ev);
-        
+
         switch (action & MotionEvent.ACTION_MASK) {
             case MotionEvent.ACTION_MOVE: {
                 /*
@@ -681,9 +810,9 @@
                 final int touchSlop = mTouchSlop;
                 boolean xMoved = xDiff > touchSlop;
                 boolean yMoved = yDiff > touchSlop;
-                
+
                 if (xMoved || yMoved) {
-                    
+
                     if (xMoved) {
                         // Scroll if the user moved far enough along the X axis
                         mTouchState = TOUCH_STATE_SCROLLING;
@@ -705,14 +834,14 @@
                 break;
             }
 
-            case MotionEvent.ACTION_DOWN: {
-                final float x = ev.getX();
-                final float y = ev.getY();
-                // Remember location of down touch
-                mLastMotionX = x;
-                mLastMotionY = y;
-                mActivePointerId = ev.getPointerId(0);
-                mAllowLongPress = true;
+        case MotionEvent.ACTION_DOWN: {
+            final float x = ev.getX();
+            final float y = ev.getY();
+            // Remember location of down touch
+            mLastMotionX = x;
+            mLastMotionY = y;
+            mActivePointerId = ev.getPointerId(0);
+            mAllowLongPress = true;
 
                 /*
                  * If being flinged and user touches the screen, initiate drag;
@@ -725,36 +854,36 @@
 
             case MotionEvent.ACTION_CANCEL:
             case MotionEvent.ACTION_UP:
-                
+
                 if (mTouchState != TOUCH_STATE_SCROLLING) {
                     final CellLayout currentScreen = (CellLayout)getChildAt(mCurrentScreen);
                     if (!currentScreen.lastDownOnOccupiedCell()) {
                         getLocationOnScreen(mTempCell);
                         // Send a tap to the wallpaper if the last down was on empty space
                         final int pointerIndex = ev.findPointerIndex(mActivePointerId);
-                        mWallpaperManager.sendWallpaperCommand(getWindowToken(), 
+                        mWallpaperManager.sendWallpaperCommand(getWindowToken(),
                                 "android.wallpaper.tap",
                                 mTempCell[0] + (int) ev.getX(pointerIndex),
                                 mTempCell[1] + (int) ev.getY(pointerIndex), 0, null);
                     }
                 }
-                
+
                 // Release the drag
                 clearChildrenCache();
                 mTouchState = TOUCH_STATE_REST;
                 mActivePointerId = INVALID_POINTER;
                 mAllowLongPress = false;
-                
+
                 if (mVelocityTracker != null) {
                     mVelocityTracker.recycle();
                     mVelocityTracker = null;
                 }
 
-                break;
-                
-            case MotionEvent.ACTION_POINTER_UP:
-                onSecondaryPointerUp(ev);
-                break;
+            break;
+
+        case MotionEvent.ACTION_POINTER_UP:
+            onSecondaryPointerUp(ev);
+            break;
         }
 
         /*
@@ -763,7 +892,7 @@
          */
         return mTouchState != TOUCH_STATE_REST;
     }
-    
+
     private void onSecondaryPointerUp(MotionEvent ev) {
         final int pointerIndex = (ev.getAction() & MotionEvent.ACTION_POINTER_INDEX_MASK) >>
                 MotionEvent.ACTION_POINTER_INDEX_SHIFT;
@@ -803,7 +932,7 @@
             }
             ViewParent parent = v.getParent();
             if (parent instanceof View) {
-                v = (View)v.getParent();
+                v = (View) v.getParent();
             } else {
                 return;
             }
@@ -816,7 +945,7 @@
             fromScreen = toScreen;
             toScreen = temp;
         }
-        
+
         final int count = getChildCount();
 
         fromScreen = Math.max(fromScreen, 0);
@@ -839,7 +968,7 @@
 
     @Override
     public boolean onTouchEvent(MotionEvent ev) {
-        
+
         if (mLauncher.isWorkspaceLocked()) {
             return false; // We don't want the events.  Let them fall through to the all apps view.
         }
@@ -908,11 +1037,11 @@
                 final VelocityTracker velocityTracker = mVelocityTracker;
                 velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity);
                 final int velocityX = (int) velocityTracker.getXVelocity(mActivePointerId);
-                
+
                 final int screenWidth = getWidth();
                 final int whichScreen = (mScrollX + (screenWidth / 2)) / screenWidth;
                 final float scrolledPos = (float) mScrollX / screenWidth;
-                
+
                 if (velocityX > SNAP_VELOCITY && mCurrentScreen > 0) {
                     // Fling hard enough to move left.
                     // Don't fling across more than one screen at a time.
@@ -948,30 +1077,32 @@
 
         return true;
     }
-    
+
     void snapToScreen(int whichScreen) {
         snapToScreen(whichScreen, 0, false);
     }
 
     private void snapToScreen(int whichScreen, int velocity, boolean settle) {
-        //if (!mScroller.isFinished()) return;
+        // if (!mScroller.isFinished()) return;
 
         whichScreen = Math.max(0, Math.min(whichScreen, getChildCount() - 1));
-        
+
         clearVacantCache();
         enableChildrenCache(mCurrentScreen, whichScreen);
 
         mNextScreen = whichScreen;
 
-        mPreviousIndicator.setLevel(mNextScreen);
-        mNextIndicator.setLevel(mNextScreen);
+        if (mPreviousIndicator != null) {
+            mPreviousIndicator.setLevel(mNextScreen);
+            mNextIndicator.setLevel(mNextScreen);
+        }
 
         View focusedChild = getFocusedChild();
         if (focusedChild != null && whichScreen != mCurrentScreen &&
                 focusedChild == getChildAt(mCurrentScreen)) {
             focusedChild.clearFocus();
         }
-        
+
         final int screenDelta = Math.max(1, Math.abs(whichScreen - mCurrentScreen));
         final int newX = whichScreen * getWidth();
         final int delta = newX - mScrollX;
@@ -980,13 +1111,13 @@
         if (!mScroller.isFinished()) {
             mScroller.abortAnimation();
         }
-        
+
         if (settle) {
             mScrollInterpolator.setDistance(screenDelta);
         } else {
             mScrollInterpolator.disableSettle();
         }
-        
+
         velocity = Math.abs(velocity);
         if (velocity > 0) {
             duration += (duration / (velocity / BASELINE_FLING_VELOCITY))
@@ -1002,15 +1133,15 @@
 
     void startDrag(CellLayout.CellInfo cellInfo) {
         View child = cellInfo.cell;
-        
+
         // Make sure the drag was started by a long press as opposed to a long click.
         if (!child.isInTouchMode()) {
             return;
         }
-        
+
         mDragInfo = cellInfo;
         mDragInfo.screen = mCurrentScreen;
-        
+
         CellLayout current = ((CellLayout) getChildAt(mCurrentScreen));
 
         current.onDragChild(child);
@@ -1057,81 +1188,164 @@
             // Move internally
             if (mDragInfo != null) {
                 final View cell = mDragInfo.cell;
-                int index = mScroller.isFinished() ? mCurrentScreen : mNextScreen;                
+                int index = mScroller.isFinished() ? mCurrentScreen : mNextScreen;
                 if (index != mDragInfo.screen) {
                     final CellLayout originalCellLayout = (CellLayout) getChildAt(mDragInfo.screen);
                     originalCellLayout.removeView(cell);
-                    cellLayout.addView(cell);
+                    addInScreen(cell, index, mDragInfo.cellX, mDragInfo.cellY,
+                            mDragInfo.spanX, mDragInfo.spanY);
                 }
                 mTargetCell = estimateDropCell(x - xOffset, y - yOffset,
-                        mDragInfo.spanX, mDragInfo.spanY, cell, cellLayout, mTargetCell);
-                cellLayout.onDropChild(cell, mTargetCell);
+                        mDragInfo.spanX, mDragInfo.spanY, cell, cellLayout,
+                        mTargetCell);
+                cellLayout.onDropChild(cell);
 
+                // update the item's position after drop
                 final ItemInfo info = (ItemInfo) cell.getTag();
-                CellLayout.LayoutParams lp = (CellLayout.LayoutParams) cell.getLayoutParams();
+                CellLayout.LayoutParams lp = (CellLayout.LayoutParams) cell
+                        .getLayoutParams();
+                lp.cellX = mTargetCell[0];
+                lp.cellY = mTargetCell[1];
+
                 LauncherModel.moveItemInDatabase(mLauncher, info,
-                        LauncherSettings.Favorites.CONTAINER_DESKTOP, index, lp.cellX, lp.cellY);
+                        LauncherSettings.Favorites.CONTAINER_DESKTOP, index,
+                        lp.cellX, lp.cellY);
             }
         }
     }
 
-    public void onDragEnter(DragSource source, int x, int y, int xOffset, int yOffset,
-            DragView dragView, Object dragInfo) {
+    public void onDragEnter(DragSource source, int x, int y, int xOffset,
+            int yOffset, DragView dragView, Object dragInfo) {
         clearVacantCache();
     }
 
+    public DropTarget getDropTargetDelegate(DragSource source, int x, int y, int xOffset, int yOffset,
+            DragView dragView, Object dragInfo) {
+
+        // We may need to delegate the drag to a child view. If a 1x1 item
+        // would land in a cell occupied by a DragTarget (e.g. a Folder),
+        // then drag events should be handled by that child.
+
+        ItemInfo item = (ItemInfo)dragInfo;
+        CellLayout currentLayout = getCurrentDropLayout();
+
+        int dragPointX, dragPointY;
+        if (item.spanX == 1 && item.spanY == 1) {
+            // For a 1x1, calculate the drop cell exactly as in onDragOver
+            dragPointX = x - xOffset;
+            dragPointY = y - yOffset;
+        } else {
+            // Otherwise, use the exact drag coordinates
+            dragPointX = x;
+            dragPointY = y;
+        }
+
+        // If we are dragging over a cell that contains a DropTarget that will
+        // accept the drop, delegate to that DropTarget.
+        final int[] cellXY = mTempCell;
+        currentLayout.estimateDropCell(dragPointX, dragPointY, item.spanX, item.spanY, cellXY);
+        View child = currentLayout.getChildAt(cellXY[0], cellXY[1]);
+        if (child instanceof DropTarget) {
+            DropTarget target = (DropTarget)child;
+            if (target.acceptDrop(source, x, y, xOffset, yOffset, dragView, dragInfo)) {
+                return target;
+            }
+        }
+        return null;
+    }
+
     public void onDragOver(DragSource source, int x, int y, int xOffset, int yOffset,
             DragView dragView, Object dragInfo) {
+
+        ItemInfo item = (ItemInfo)dragInfo;
+        CellLayout currentLayout = getCurrentDropLayout();
+
+        if (dragInfo instanceof LauncherAppWidgetInfo) {
+            LauncherAppWidgetInfo widgetInfo = (LauncherAppWidgetInfo)dragInfo;
+
+            if (widgetInfo.spanX == -1) {
+                // Calculate the grid spans needed to fit this widget
+                int[] spans = currentLayout.rectToCell(widgetInfo.minWidth, widgetInfo.minHeight, null);
+                item.spanX = spans[0];
+                item.spanY = spans[1];
+            }
+        }
+        if (currentLayout != mDragTargetLayout) {
+            if (mDragTargetLayout != null) {
+                mDragTargetLayout.onDragComplete();
+            }
+            mDragTargetLayout = currentLayout;
+        }
+
+        // Find the top left corner of the item
+        int originX = x - xOffset;
+        int originY = y - yOffset;
+
+        final View child = (mDragInfo == null) ? null : mDragInfo.cell;
+        currentLayout.visualizeDropLocation(child, originX, originY, item.spanX, item.spanY);
     }
 
-    public void onDragExit(DragSource source, int x, int y, int xOffset, int yOffset,
-            DragView dragView, Object dragInfo) {
+    public void onDragExit(DragSource source, int x, int y, int xOffset,
+            int yOffset, DragView dragView, Object dragInfo) {
         clearVacantCache();
+        if (mDragTargetLayout != null) {
+            mDragTargetLayout.onDragComplete();
+            mDragTargetLayout = null;
+        }
     }
 
-    private void onDropExternal(int x, int y, Object dragInfo, CellLayout cellLayout) {
+    private void onDropExternal(int x, int y, Object dragInfo,
+            CellLayout cellLayout) {
         onDropExternal(x, y, dragInfo, cellLayout, false);
     }
-    
-    private void onDropExternal(int x, int y, Object dragInfo, CellLayout cellLayout,
-            boolean insertAtFirst) {
+
+    private void onDropExternal(int x, int y, Object dragInfo,
+            CellLayout cellLayout, boolean insertAtFirst) {
         // Drag from somewhere else
         ItemInfo info = (ItemInfo) dragInfo;
 
-        View view;
+        View view = null;
 
         switch (info.itemType) {
         case LauncherSettings.Favorites.ITEM_TYPE_APPLICATION:
         case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT:
             if (info.container == NO_ID && info instanceof ApplicationInfo) {
                 // Came from all apps -- make a copy
-                info = new ShortcutInfo((ApplicationInfo)info);
+                info = new ShortcutInfo((ApplicationInfo) info);
             }
-            view = mLauncher.createShortcut(R.layout.application, cellLayout, (ShortcutInfo)info);
+            view = mLauncher.createShortcut(R.layout.application, cellLayout,
+                    (ShortcutInfo) info);
             break;
         case LauncherSettings.Favorites.ITEM_TYPE_USER_FOLDER:
             view = FolderIcon.fromXml(R.layout.folder_icon, mLauncher,
-                    (ViewGroup) getChildAt(mCurrentScreen), ((UserFolderInfo) info));
+                    (ViewGroup) getChildAt(mCurrentScreen),
+                    ((UserFolderInfo) info));
+            break;
+        case LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET:
+            cellLayout.setTagToCellInfoForPoint(x, y);
+            mLauncher.addAppWidgetFromDrop(((LauncherAppWidgetInfo)dragInfo).providerName, cellLayout.getTag());
             break;
         default:
-            throw new IllegalStateException("Unknown item type: " + info.itemType);
+            throw new IllegalStateException("Unknown item type: "
+                    + info.itemType);
         }
 
-        cellLayout.addView(view, insertAtFirst ? 0 : -1);
-        view.setHapticFeedbackEnabled(false);
-        view.setOnLongClickListener(mLongClickListener);
-        if (view instanceof DropTarget) {
-            mDragController.addDropTarget((DropTarget) view);
+        // If the view is null, it has already been added.
+        if (view == null) {
+            cellLayout.onDragComplete();
+        } else {
+            mTargetCell = estimateDropCell(x, y, 1, 1, view, cellLayout, mTargetCell);
+            addInScreen(view, indexOfChild(cellLayout), mTargetCell[0],
+                    mTargetCell[1], info.spanX, info.spanY, insertAtFirst);
+            cellLayout.onDropChild(view);
+            CellLayout.LayoutParams lp = (CellLayout.LayoutParams) view.getLayoutParams();
+
+            LauncherModel.addOrMoveItemInDatabase(mLauncher, info,
+                    LauncherSettings.Favorites.CONTAINER_DESKTOP, mCurrentScreen,
+                    lp.cellX, lp.cellY);
         }
-
-        mTargetCell = estimateDropCell(x, y, 1, 1, view, cellLayout, mTargetCell);
-        cellLayout.onDropChild(view, mTargetCell);
-        CellLayout.LayoutParams lp = (CellLayout.LayoutParams) view.getLayoutParams();
-
-        LauncherModel.addOrMoveItemInDatabase(mLauncher, info,
-                LauncherSettings.Favorites.CONTAINER_DESKTOP, mCurrentScreen, lp.cellX, lp.cellY);
     }
-    
+
     /**
      * Return the current {@link CellLayout}, correctly picking the destination
      * screen while a scroll is in progress.
@@ -1156,39 +1370,44 @@
             mVacantCache = layout.findAllVacantCells(null, ignoreView);
         }
 
-        return mVacantCache.findCellForSpan(mTempEstimate, spanX, spanY, false);
+        if (mVacantCache.findCellForSpan(mTempEstimate, spanX, spanY, false)) {
+            return true;
+        } else {
+            Toast.makeText(getContext(), getContext().getString(R.string.out_of_space), Toast.LENGTH_SHORT).show();
+            return false;
+        }
     }
-    
+
     /**
      * {@inheritDoc}
      */
     public Rect estimateDropLocation(DragSource source, int x, int y,
             int xOffset, int yOffset, DragView dragView, Object dragInfo, Rect recycle) {
         final CellLayout layout = getCurrentDropLayout();
-        
+
         final CellLayout.CellInfo cellInfo = mDragInfo;
         final int spanX = cellInfo == null ? 1 : cellInfo.spanX;
         final int spanY = cellInfo == null ? 1 : cellInfo.spanY;
         final View ignoreView = cellInfo == null ? null : cellInfo.cell;
-        
+
         final Rect location = recycle != null ? recycle : new Rect();
-        
+
         // Find drop cell and convert into rectangle
-        int[] dropCell = estimateDropCell(x - xOffset, y - yOffset,
-                spanX, spanY, ignoreView, layout, mTempCell);
-        
+        int[] dropCell = estimateDropCell(x - xOffset, y - yOffset, spanX,
+                spanY, ignoreView, layout, mTempCell);
+
         if (dropCell == null) {
             return null;
         }
-        
+
         layout.cellToPoint(dropCell[0], dropCell[1], mTempEstimate);
         location.left = mTempEstimate[0];
         location.top = mTempEstimate[1];
-        
+
         layout.cellToPoint(dropCell[0] + spanX, dropCell[1] + spanY, mTempEstimate);
         location.right = mTempEstimate[0];
         location.bottom = mTempEstimate[1];
-        
+
         return location;
     }
 
@@ -1197,16 +1416,27 @@
      */
     private int[] estimateDropCell(int pixelX, int pixelY,
             int spanX, int spanY, View ignoreView, CellLayout layout, int[] recycle) {
+
+        final int[] cellXY = mTempCell;
+        layout.estimateDropCell(pixelX, pixelY, spanX, spanY, cellXY);
+        layout.cellToPoint(cellXY[0], cellXY[1], mTempEstimate);
+
         // Create vacant cell cache if none exists
         if (mVacantCache == null) {
             mVacantCache = layout.findAllVacantCells(null, ignoreView);
         }
 
         // Find the best target drop location
-        return layout.findNearestVacantArea(pixelX, pixelY,
-                spanX, spanY, mVacantCache, recycle);
+        return layout.findNearestVacantArea(mTempEstimate[0], mTempEstimate[1], spanX, spanY, mVacantCache, recycle);
     }
-    
+
+    /**
+     * Estimate the size that a child with the given dimensions will take in the current screen.
+     */
+    void estimateChildSize(int minWidth, int minHeight, int[] result) {
+        ((CellLayout)getChildAt(mCurrentScreen)).estimateChildSize(minWidth, minHeight, result);
+    }
+
     void setLauncher(Launcher launcher) {
         mLauncher = launcher;
     }
@@ -1218,14 +1448,14 @@
     public void onDropCompleted(View target, boolean success) {
         clearVacantCache();
 
-        if (success){
+        if (success) {
             if (target != this && mDragInfo != null) {
                 final CellLayout cellLayout = (CellLayout) getChildAt(mDragInfo.screen);
                 cellLayout.removeView(mDragInfo.cell);
                 if (mDragInfo.cell instanceof DropTarget) {
                     mDragController.removeDropTarget((DropTarget)mDragInfo.cell);
                 }
-                //final Object tag = mDragInfo.cell.getTag();
+                // final Object tag = mDragInfo.cell.getTag();
             }
         } else {
             if (mDragInfo != null) {
@@ -1240,18 +1470,22 @@
     public void scrollLeft() {
         clearVacantCache();
         if (mScroller.isFinished()) {
-            if (mCurrentScreen > 0) snapToScreen(mCurrentScreen - 1);
+            if (mCurrentScreen > 0)
+                snapToScreen(mCurrentScreen - 1);
         } else {
-            if (mNextScreen > 0) snapToScreen(mNextScreen - 1);            
+            if (mNextScreen > 0)
+                snapToScreen(mNextScreen - 1);
         }
     }
 
     public void scrollRight() {
         clearVacantCache();
         if (mScroller.isFinished()) {
-            if (mCurrentScreen < getChildCount() -1) snapToScreen(mCurrentScreen + 1);
+            if (mCurrentScreen < getChildCount() - 1)
+                snapToScreen(mCurrentScreen + 1);
         } else {
-            if (mNextScreen < getChildCount() -1) snapToScreen(mNextScreen + 1);            
+            if (mNextScreen < getChildCount() - 1)
+                snapToScreen(mNextScreen + 1);
         }
     }
 
@@ -1279,7 +1513,7 @@
                 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) child.getLayoutParams();
                 if (lp.cellHSpan == 4 && lp.cellVSpan == 4 && child instanceof Folder) {
                     Folder f = (Folder) child;
-                    if (f.getInfo() == tag) {
+                    if (f.getInfo() == tag && f.getInfo().opened) {
                         return f;
                     }
                 }
@@ -1309,7 +1543,7 @@
     public boolean allowLongPress() {
         return mAllowLongPress;
     }
-    
+
     /**
      * Set true to allow long-press events to be triggered, usually checked by
      * {@link Launcher} to accept or block dpad-initiated long-presses.
@@ -1337,17 +1571,17 @@
                 public void run() {
                     final ArrayList<View> childrenToRemove = new ArrayList<View>();
                     childrenToRemove.clear();
-        
+
                     int childCount = layout.getChildCount();
                     for (int j = 0; j < childCount; j++) {
                         final View view = layout.getChildAt(j);
                         Object tag = view.getTag();
-        
+
                         if (tag instanceof ShortcutInfo) {
                             final ShortcutInfo info = (ShortcutInfo) tag;
                             final Intent intent = info.intent;
                             final ComponentName name = intent.getComponent();
-        
+
                             if (Intent.ACTION_MAIN.equals(intent.getAction()) && name != null) {
                                 for (String packageName: packageNames) {
                                     if (packageName.equals(name.getPackageName())) {
@@ -1363,12 +1597,12 @@
                             final ArrayList<ShortcutInfo> toRemove = new ArrayList<ShortcutInfo>(1);
                             final int contentsCount = contents.size();
                             boolean removedFromFolder = false;
-        
+
                             for (int k = 0; k < contentsCount; k++) {
                                 final ShortcutInfo appInfo = contents.get(k);
                                 final Intent intent = appInfo.intent;
                                 final ComponentName name = intent.getComponent();
-        
+
                                 if (Intent.ACTION_MAIN.equals(intent.getAction()) && name != null) {
                                     for (String packageName: packageNames) {
                                         if (packageName.equals(name.getPackageName())) {
@@ -1381,11 +1615,12 @@
                                     }
                                 }
                             }
-        
+
                             contents.removeAll(toRemove);
                             if (removedFromFolder) {
                                 final Folder folder = getOpenFolder();
-                                if (folder != null) folder.notifyDataSetChanged();
+                                if (folder != null)
+                                    folder.notifyDataSetChanged();
                             }
                         } else if (tag instanceof LiveFolderInfo) {
                             final LiveFolderInfo info = (LiveFolderInfo) tag;
@@ -1398,7 +1633,7 @@
                                     if (packageName.equals(providerInfo.packageName)) {
                                         // TODO: This should probably be done on a worker thread
                                         LauncherModel.deleteItemFromDatabase(mLauncher, info);
-                                        childrenToRemove.add(view);                        
+                                        childrenToRemove.add(view);
                                     }
                                 }
                             }
@@ -1411,13 +1646,13 @@
                                     if (packageName.equals(provider.provider.getPackageName())) {
                                         // TODO: This should probably be done on a worker thread
                                         LauncherModel.deleteItemFromDatabase(mLauncher, info);
-                                        childrenToRemove.add(view);                                
+                                        childrenToRemove.add(view);
                                     }
                                 }
                             }
                         }
                     }
-        
+
                     childCount = childrenToRemove.size();
                     for (int j = 0; j < childCount; j++) {
                         View child = childrenToRemove.get(j);
@@ -1426,7 +1661,7 @@
                             mDragController.removeDropTarget((DropTarget)child);
                         }
                     }
-        
+
                     if (childCount > 0) {
                         layout.requestLayout();
                         layout.invalidate();
@@ -1456,7 +1691,7 @@
                     if (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPLICATION &&
                             Intent.ACTION_MAIN.equals(intent.getAction()) && name != null) {
                         final int appCount = apps.size();
-                        for (int k=0; k<appCount; k++) {
+                        for (int k = 0; k < appCount; k++) {
                             ApplicationInfo app = apps.get(k);
                             if (app.componentName.equals(name)) {
                                 info.setIcon(mIconCache.getIcon(info.intent));
diff --git a/src/com/android/launcher2/allapps.rs b/src/com/android/launcher2/allapps.rs
new file mode 100644
index 0000000..fad8907
--- /dev/null
+++ b/src/com/android/launcher2/allapps.rs
@@ -0,0 +1,390 @@
+#pragma version(1)
+
+#pragma rs java_package_name(com.android.launcher2)
+
+#include "rs_graphics.rsh"
+
+#define PI 3.14159f
+
+// Constants from Java
+int COLUMNS_PER_PAGE_PORTRAIT;
+int ROWS_PER_PAGE_PORTRAIT;
+int COLUMNS_PER_PAGE_LANDSCAPE;
+int ROWS_PER_PAGE_LANDSCAPE;
+
+int gIconCount;
+int gSelectedIconIndex = -1;
+rs_allocation gSelectedIconTexture;
+rs_allocation gHomeButton;
+
+rs_program_fragment gPFTexNearest;
+rs_program_fragment gPFTexMip;
+rs_program_fragment gPFTexMipAlpha;
+rs_program_vertex gPVCurve;
+rs_program_store gPS;
+rs_mesh gSMCell;
+
+rs_allocation *gIconIDs;
+rs_allocation *gLabelIDs;
+
+typedef struct VpConsts {
+    float4 Position;
+    float4 ScaleOffset;
+    float2 BendPos;
+    float2 ImgSize;
+} VpConsts_t;
+VpConsts_t *vpConstants;
+
+
+#pragma rs export_var(COLUMNS_PER_PAGE_PORTRAIT, ROWS_PER_PAGE_PORTRAIT, COLUMNS_PER_PAGE_LANDSCAPE, ROWS_PER_PAGE_LANDSCAPE, gIconCount, gSelectedIconIndex, gSelectedIconTexture, gHomeButton, gTargetPos, gPFTexNearest, gPFTexMip, gPFTexMipAlpha, gPVCurve, gPS, gSMCell, gIconIDs, gLabelIDs, vpConstants)
+#pragma rs export_func(move, moveTo, setZoom, fling)
+
+
+// Attraction to center values from page edge to page center.
+static float g_AttractionTable[9] = {20.f, 20.f, 20.f, 10.f, -10.f, -20.f, -20.f, -20.f, -20.f};
+static float g_FrictionTable[9] = {10.f, 10.f, 11.f, 15.f, 15.f, 11.f, 10.f, 10.f, 10.f};
+static float g_PhysicsTableSize = 7;
+
+static float gZoomTarget;
+static float gTargetPos;
+static float g_PosPage = 0.f;
+static float g_PosVelocity = 0.f;
+static float g_LastPositionX = 0.f;
+static bool g_LastTouchDown = false;
+static float g_DT;
+static int64_t g_LastTime;
+static int g_PosMax;
+static float g_Zoom = 0.f;
+static float g_Animation = 1.f;
+static float g_OldPosPage;
+static float g_OldPosVelocity;
+static float g_OldZoom;
+static float g_MoveToTotalTime = 0.2f;
+static float g_MoveToTime = 0.f;
+static float g_MoveToOldPos = 0.f;
+
+static int g_Cols;
+static int g_Rows;
+
+// Drawing constants, should be parameters ======
+#define VIEW_ANGLE 1.28700222f
+
+
+static void updateReadback() {
+    if ((g_OldPosPage != g_PosPage) ||
+        (g_OldPosVelocity != g_PosVelocity) ||
+        (g_OldZoom != g_Zoom)) {
+
+        g_OldPosPage = g_PosPage;
+        g_OldPosVelocity = g_PosVelocity;
+        g_OldZoom = g_Zoom;
+
+        int i[3];
+        i[0] = g_PosPage * (1 << 16);
+        i[1] = g_PosVelocity * (1 << 16);
+        i[2] = g_OldZoom * (1 << 16);
+        rsSendToClient(&i[0], 1, 12, 1);
+    }
+}
+
+void init() {
+}
+
+void move(float newPos) {
+    if (g_LastTouchDown) {
+        float dx = -(newPos - g_LastPositionX);
+        g_PosVelocity = 0;
+        g_PosPage += dx * 5.2f;
+
+        float pmin = -0.49f;
+        float pmax = g_PosMax + 0.49f;
+        g_PosPage = clamp(g_PosPage, pmin, pmax);
+    }
+    g_LastTouchDown = true;
+    g_LastPositionX = newPos;
+    g_MoveToTime = 0;
+}
+
+void moveTo(float targetPos) {
+    gTargetPos = targetPos;
+    g_MoveToTime = g_MoveToTotalTime;
+    g_PosVelocity = 0;
+    g_MoveToOldPos = g_PosPage;
+}
+
+void setZoom(float z, /*bool*/ int animate) {
+    gZoomTarget = z;
+    if (gZoomTarget < 0.001f) {
+        gZoomTarget = 0;
+    }
+    if (!animate) {
+        g_Zoom = gZoomTarget;
+    }
+    updateReadback();
+}
+
+void fling(float newPos, float vel) {
+    move(newPos);
+
+    g_LastTouchDown = false;
+    g_PosVelocity = -vel * 4;
+    float av = fabs(g_PosVelocity);
+    float minVel = 3.5f;
+
+    minVel *= 1.f - (fabs(rsFrac(g_PosPage + 0.5f) - 0.5f) * 0.45f);
+
+    if (av < minVel && av > 0.2f) {
+        if (g_PosVelocity > 0) {
+            g_PosVelocity = minVel;
+        } else {
+            g_PosVelocity = -minVel;
+        }
+    }
+
+    if (g_PosPage <= 0) {
+        g_PosVelocity = max(0.f, g_PosVelocity);
+    }
+    if (g_PosPage > g_PosMax) {
+        g_PosVelocity = min(0.f, g_PosVelocity);
+    }
+}
+
+// Interpolates values in the range 0..1 to a curve that eases in
+// and out.
+static float getInterpolation(float input) {
+    return (cos((input + 1) * PI) * 0.5f) + 0.5f;
+}
+
+
+static void updatePos() {
+    if (g_LastTouchDown) {
+        return;
+    }
+
+    float tablePosNorm = rsFrac(g_PosPage + 0.5f);
+    float tablePosF = tablePosNorm * g_PhysicsTableSize;
+    int tablePosI = tablePosF;
+    float tablePosFrac = tablePosF - tablePosI;
+    float accel = mix(g_AttractionTable[tablePosI],
+                        g_AttractionTable[tablePosI + 1],
+                        tablePosFrac) * g_DT;
+    float friction = mix(g_FrictionTable[tablePosI],
+                        g_FrictionTable[tablePosI + 1],
+                        tablePosFrac) * g_DT;
+
+    if (g_MoveToTime) {
+        // New position is old posiition + (total distance) * (interpolated time)
+        g_PosPage = g_MoveToOldPos + (gTargetPos - g_MoveToOldPos) * getInterpolation((g_MoveToTotalTime - g_MoveToTime) / g_MoveToTotalTime);
+        g_MoveToTime -= g_DT;
+        if (g_MoveToTime <= 0) {
+            g_MoveToTime = 0;
+            g_PosPage = gTargetPos;
+        }
+        return;
+    }
+
+    // If our velocity is low OR acceleration is opposing it, apply it.
+    if (fabs(g_PosVelocity) < 4.0f || (g_PosVelocity * accel) < 0) {
+        g_PosVelocity += accel;
+    }
+    //RS_DEBUG(g_PosPage);
+    //RS_DEBUG(g_PosVelocity);
+    //RS_DEBUG(friction);
+    //RS_DEBUG(accel);
+
+    // Normal physics
+    if (g_PosVelocity > 0) {
+        g_PosVelocity -= friction;
+        g_PosVelocity = max(g_PosVelocity, 0.f);
+    } else {
+        g_PosVelocity += friction;
+        g_PosVelocity = min(g_PosVelocity, 0.f);
+    }
+
+    if ((friction > fabs(g_PosVelocity)) && (friction > fabs(accel))) {
+        // Special get back to center and overcome friction physics.
+        float t = tablePosNorm - 0.5f;
+        if (fabs(t) < (friction * g_DT)) {
+            // really close, just snap
+            g_PosPage = round(g_PosPage);
+            g_PosVelocity = 0;
+        } else {
+            if (t > 0) {
+                g_PosVelocity = -friction;
+            } else {
+                g_PosVelocity = friction;
+            }
+        }
+    }
+
+    // Check for out of boundry conditions.
+    if (g_PosPage < 0 && g_PosVelocity < 0) {
+        float damp = 1.0f + (g_PosPage * 4);
+        damp = clamp(damp, 0.f, 0.9f);
+        g_PosVelocity *= damp;
+    }
+    if (g_PosPage > g_PosMax && g_PosVelocity > 0) {
+        float damp = 1.0f - ((g_PosPage - g_PosMax) * 4);
+        damp = clamp(damp, 0.f, 0.9f);
+        g_PosVelocity *= damp;
+    }
+
+    g_PosPage += g_PosVelocity * g_DT;
+    g_PosPage = clamp(g_PosPage, -0.49f, g_PosMax + 0.49f);
+}
+
+static void
+draw_home_button()
+{
+    color(1.0f, 1.0f, 1.0f, 1.0f);
+    rsgBindTexture(gPFTexNearest, 0, gHomeButton);
+
+    float w = rsgGetWidth();
+    float h = rsgGetHeight();
+    float tw = rsAllocationGetDimX(gHomeButton);
+    float th = rsAllocationGetDimY(gHomeButton);
+
+    float x;
+    float y;
+    if (w > h) {
+        x = w - (tw * (1 - g_Animation)) + 20;
+        y = (h - th) * 0.5f;
+    } else {
+        x = (w - tw) / 2;
+        y = -g_Animation * th;
+        y -= 30; // move the house to the edge of the screen as it doesn't fill the texture.
+    }
+
+    rsgDrawSpriteScreenspace(x, y, 0, tw, th);
+}
+
+static void drawFrontGrid(float rowOffset, float p)
+{
+    float h = rsgGetHeight();
+    float w = rsgGetWidth();
+
+    int intRowOffset = rowOffset;
+    float rowFrac = rowOffset - intRowOffset;
+    float colWidth = 120.f;//w / 4;
+    float rowHeight = colWidth + 25.f;
+    float yoff = 0.5f * h + 1.5f * rowHeight;
+
+    int row, col;
+    int colCount = 4;
+    if (w > h) {
+        colCount = 6;
+        rowHeight -= 12.f;
+        yoff = 0.47f * h + 1.0f * rowHeight;
+    }
+
+    int iconNum = (intRowOffset - 5) * colCount;
+
+    rsgBindProgramVertex(gPVCurve);
+
+    vpConstants->Position.z = p;
+
+    color(1.0f, 1.0f, 1.0f, 1.0f);
+    for (row = -5; row < 15; row++) {
+        float y = yoff - ((-rowFrac + row) * rowHeight);
+
+        for (col=0; col < colCount; col++) {
+            if (iconNum >= gIconCount) {
+                return;
+            }
+
+            if (iconNum >= 0) {
+                float x = colWidth * col + (colWidth / 2);
+                vpConstants->Position.x = x + 0.2f;
+
+                if (gSelectedIconIndex == iconNum && !p && gSelectedIconTexture.p) {
+                    rsgBindProgramFragment(gPFTexNearest);
+                    rsgBindTexture(gPFTexNearest, 0, gSelectedIconTexture);
+                    vpConstants->ImgSize.x = rsAllocationGetDimX(gSelectedIconTexture);
+                    vpConstants->ImgSize.y = rsAllocationGetDimY(gSelectedIconTexture);
+                    vpConstants->Position.y = y - (rsAllocationGetDimY(gSelectedIconTexture)
+                                                - rsAllocationGetDimY(gIconIDs[iconNum])) * 0.5f;
+                    rsgDrawMesh(gSMCell);
+                }
+
+                rsgBindProgramFragment(gPFTexMip);
+                vpConstants->ImgSize.x = rsAllocationGetDimX(gIconIDs[iconNum]);
+                vpConstants->ImgSize.y = rsAllocationGetDimY(gIconIDs[iconNum]);
+                vpConstants->Position.y = y - 0.2f;
+                rsgBindTexture(gPFTexMip, 0, gIconIDs[iconNum]);
+                rsgDrawMesh(gSMCell);
+
+                rsgBindProgramFragment(gPFTexMipAlpha);
+                vpConstants->ImgSize.x = rsAllocationGetDimX(gLabelIDs[iconNum]);
+                vpConstants->ImgSize.y = rsAllocationGetDimY(gLabelIDs[iconNum]);
+                vpConstants->Position.y = y - 64.f - 0.2f;
+                rsgBindTexture(gPFTexMipAlpha, 0, gLabelIDs[iconNum]);
+                rsgDrawMesh(gSMCell);
+            }
+            iconNum++;
+        }
+    }
+}
+
+
+int root()
+{
+    // Compute dt in seconds.
+    int64_t newTime = rsUptimeMillis();
+    g_DT = (newTime - g_LastTime) * 0.001f;
+    g_LastTime = newTime;
+
+    // physics may break if DT is large.
+    g_DT = min(g_DT, 0.1f);
+
+    if (g_Zoom != gZoomTarget) {
+        float dz = g_DT * 1.7f;
+        if (gZoomTarget < 0.5f) {
+            dz = -dz;
+        }
+        if (fabs(g_Zoom - gZoomTarget) < fabs(dz)) {
+            g_Zoom = gZoomTarget;
+        } else {
+            g_Zoom += dz;
+        }
+        updateReadback();
+    }
+    g_Animation = pow(1.f - g_Zoom, 3.f);
+
+    // Set clear value to dim the background based on the zoom position.
+    if ((g_Zoom < 0.001f) && (gZoomTarget < 0.001f)) {
+        rsgClearColor(0.0f, 0.0f, 0.0f, 0.0f);
+        // When we're zoomed out and not tracking motion events, reset the pos to 0.
+        if (!g_LastTouchDown) {
+            g_PosPage = 0;
+        }
+        return 0;
+    } else {
+        rsgClearColor(0.0f, 0.0f, 0.0f, g_Zoom);
+    }
+
+    rsgBindProgramStore(gPS);
+
+    // icons & labels
+    if (rsgGetWidth() > rsgGetHeight()) {
+        g_Cols = COLUMNS_PER_PAGE_LANDSCAPE;
+        g_Rows = ROWS_PER_PAGE_LANDSCAPE;
+    } else {
+        g_Cols = COLUMNS_PER_PAGE_PORTRAIT;
+        g_Rows = ROWS_PER_PAGE_PORTRAIT;
+    }
+
+    g_PosMax = ((gIconCount + (g_Cols-1)) / g_Cols) - g_Rows;
+    if (g_PosMax < 0) g_PosMax = 0;
+
+    updatePos();
+    updateReadback();
+
+    // Draw the icons ========================================
+    drawFrontGrid(g_PosPage, g_Animation);
+
+    rsgBindProgramFragment(gPFTexNearest);
+    draw_home_button();
+    return (g_PosVelocity != 0) || rsFrac(g_PosPage) || g_Zoom != gZoomTarget || (g_MoveToTime != 0);
+}
+
+