diff --git a/src/com/android/launcher3/DeviceProfile.java b/src/com/android/launcher3/DeviceProfile.java
index 8af2a7f..daf5556 100644
--- a/src/com/android/launcher3/DeviceProfile.java
+++ b/src/com/android/launcher3/DeviceProfile.java
@@ -69,7 +69,7 @@
     float numRows;
     float numColumns;
     float numHotseatIcons;
-    private float iconSize;
+    float iconSize;
     private float iconTextSize;
     private int iconDrawablePaddingOriginalPx;
     private float hotseatIconSize;
@@ -130,6 +130,9 @@
 
     float dragViewScale;
 
+    int allAppsShortEdgeCount = -1;
+    int allAppsLongEdgeCount = -1;
+
     private ArrayList<DeviceProfileCallbacks> mCallbacks = new ArrayList<DeviceProfileCallbacks>();
 
     DeviceProfile(String n, float w, float h, float r, float c,
@@ -152,6 +155,9 @@
         defaultNoAllAppsLayoutId = dnalId;
     }
 
+    DeviceProfile() {
+    }
+
     DeviceProfile(Context context,
                   ArrayList<DeviceProfile> profiles,
                   float minWidth, float minHeight,
@@ -218,6 +224,7 @@
             points.add(new DeviceProfileQuery(p, p.iconSize));
         }
         iconSize = invDistWeightedInterpolate(minWidth, minHeight, points);
+
         // AllApps uses the original non-scaled icon size
         allAppsIconSizePx = DynamicGrid.pxFromDp(iconSize, dm);
 
@@ -240,6 +247,9 @@
         // Hotseat
         hotseatIconSize = invDistWeightedInterpolate(minWidth, minHeight, points);
 
+        // If the partner customization apk contains any grid overrides, apply them
+        applyPartnerDeviceProfileOverrides(context, dm);
+
         // Calculate the remaining vars
         updateFromConfiguration(context, res, wPx, hPx, awPx, ahPx);
         updateAvailableDimensions(context);
@@ -247,6 +257,33 @@
     }
 
     /**
+     * Apply any Partner customization grid overrides.
+     *
+     * Currently we support: all apps row / column count.
+     */
+    private void applyPartnerDeviceProfileOverrides(Context ctx, DisplayMetrics dm) {
+        Partner p = Partner.get(ctx.getPackageManager());
+        if (p != null) {
+            DeviceProfile partnerDp = p.getDeviceProfileOverride(dm);
+            if (partnerDp != null) {
+                if (partnerDp.numRows > 0 && partnerDp.numColumns > 0) {
+                    numRows = partnerDp.numRows;
+                    numColumns = partnerDp.numColumns;
+                }
+                if (partnerDp.allAppsShortEdgeCount > 0 && partnerDp.allAppsLongEdgeCount > 0) {
+                    allAppsShortEdgeCount = partnerDp.allAppsShortEdgeCount;
+                    allAppsLongEdgeCount = partnerDp.allAppsLongEdgeCount;
+                }
+                if (partnerDp.iconSize > 0) {
+                    iconSize = partnerDp.iconSize;
+                    // AllApps uses the original non-scaled icon size
+                    allAppsIconSizePx = DynamicGrid.pxFromDp(iconSize, dm);
+                }
+            }
+        }
+    }
+
+    /**
      * Determine the exact visual footprint of the all apps button, taking into account scaling
      * and internal padding of the drawable.
      */
@@ -380,12 +417,17 @@
         int maxRows = (isLandscape ? maxShortEdgeCellCount : maxLongEdgeCellCount);
         int maxCols = (isLandscape ? maxLongEdgeCellCount : maxShortEdgeCellCount);
 
-        allAppsNumRows = (availableHeightPx - pageIndicatorHeightPx) /
-                (allAppsCellHeightPx + allAppsCellPaddingPx);
-        allAppsNumRows = Math.max(minEdgeCellCount, Math.min(maxRows, allAppsNumRows));
-        allAppsNumCols = (availableWidthPx) /
-                (allAppsCellWidthPx + allAppsCellPaddingPx);
-        allAppsNumCols = Math.max(minEdgeCellCount, Math.min(maxCols, allAppsNumCols));
+        if (allAppsShortEdgeCount > 0 && allAppsLongEdgeCount > 0) {
+            allAppsNumRows = isLandscape ? allAppsShortEdgeCount : allAppsLongEdgeCount;
+            allAppsNumCols = isLandscape ? allAppsLongEdgeCount : allAppsShortEdgeCount;
+        } else {
+            allAppsNumRows = (availableHeightPx - pageIndicatorHeightPx) /
+                    (allAppsCellHeightPx + allAppsCellPaddingPx);
+            allAppsNumRows = Math.max(minEdgeCellCount, Math.min(maxRows, allAppsNumRows));
+            allAppsNumCols = (availableWidthPx) /
+                    (allAppsCellWidthPx + allAppsCellPaddingPx);
+            allAppsNumCols = Math.max(minEdgeCellCount, Math.min(maxCols, allAppsNumCols));
+        }
     }
 
     void updateFromConfiguration(Context context, Resources resources, int wPx, int hPx,
diff --git a/src/com/android/launcher3/LauncherProvider.java b/src/com/android/launcher3/LauncherProvider.java
index 842e0b0..30086ad 100644
--- a/src/com/android/launcher3/LauncherProvider.java
+++ b/src/com/android/launcher3/LauncherProvider.java
@@ -327,7 +327,7 @@
                 final Partner partner = Partner.get(getContext().getPackageManager());
                 if (partner != null && partner.hasDefaultLayout()) {
                     final Resources partnerRes = partner.getResources();
-                    int workspaceResId = partnerRes.getIdentifier(Partner.RESOURCE_DEFAULT_LAYOUT,
+                    int workspaceResId = partnerRes.getIdentifier(Partner.RES_DEFAULT_LAYOUT,
                             "xml", partner.getPackageName());
                     if (workspaceResId != 0) {
                         loader = new SimpleWorkspaceLoader(mOpenHelper, partnerRes, workspaceResId);
@@ -1509,7 +1509,7 @@
                         final Partner partner = Partner.get(mPackageManager);
                         if (partner != null) {
                             final Resources partnerRes = partner.getResources();
-                            final int resId = partnerRes.getIdentifier(Partner.RESOURCE_FOLDER,
+                            final int resId = partnerRes.getIdentifier(Partner.RES_FOLDER,
                                     "xml", partner.getPackageName());
                             if (resId != 0) {
                                 final XmlResourceParser partnerParser = partnerRes.getXml(resId);
diff --git a/src/com/android/launcher3/Partner.java b/src/com/android/launcher3/Partner.java
new file mode 100644
index 0000000..e191319
--- /dev/null
+++ b/src/com/android/launcher3/Partner.java
@@ -0,0 +1,171 @@
+/*
+ * Copyright (C) 2014 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.launcher3;
+
+import android.content.pm.PackageManager;
+import android.content.res.Resources;
+import android.util.DisplayMetrics;
+import android.util.Log;
+import android.util.Pair;
+
+import java.io.File;
+
+/**
+ * Utilities to discover and interact with partner customizations. There can
+ * only be one set of customizations on a device, and it must be bundled with
+ * the system.
+ */
+public class Partner {
+
+    static final String TAG = "Launcher.Partner";
+
+    /** Marker action used to discover partner */
+    private static final String
+            ACTION_PARTNER_CUSTOMIZATION = "com.android.launcher3.action.PARTNER_CUSTOMIZATION";
+
+    public static final String RES_FOLDER = "partner_folder";
+    public static final String RES_WALLPAPERS = "partner_wallpapers";
+    public static final String RES_DEFAULT_LAYOUT = "partner_default_layout";
+
+    public static final String RES_DEFAULT_WALLPAPER_HIDDEN = "default_wallpapper_hidden";
+    public static final String RES_SYSTEM_WALLPAPER_DIR = "system_wallpaper_directory";
+
+    public static final String RES_REQUIRE_FIRST_RUN_FLOW = "requires_first_run_flow";
+
+    /** These resources are used to override the device profile  */
+    public static final String RES_GRID_AA_SHORT_EDGE_COUNT = "grid_aa_short_edge_count";
+    public static final String RES_GRID_AA_LONG_EDGE_COUNT = "grid_aa_long_edge_count";
+    public static final String RES_GRID_NUM_ROWS = "grid_num_rows";
+    public static final String RES_GRID_NUM_COLUMNS = "grid_num_columns";
+    public static final String RES_GRID_ICON_SIZE_DP = "grid_icon_size_dp";
+
+    private static boolean sSearched = false;
+    private static Partner sPartner;
+
+    /**
+     * Find and return partner details, or {@code null} if none exists.
+     */
+    public static synchronized Partner get(PackageManager pm) {
+        if (!sSearched) {
+            Pair<String, Resources> apkInfo = Utilities.findSystemApk(ACTION_PARTNER_CUSTOMIZATION, pm);
+            if (apkInfo != null) {
+                sPartner = new Partner(apkInfo.first, apkInfo.second);
+            }
+            sSearched = true;
+        }
+        return sPartner;
+    }
+
+    private final String mPackageName;
+    private final Resources mResources;
+
+    private Partner(String packageName, Resources res) {
+        mPackageName = packageName;
+        mResources = res;
+    }
+
+    public String getPackageName() {
+        return mPackageName;
+    }
+
+    public Resources getResources() {
+        return mResources;
+    }
+
+    public boolean hasDefaultLayout() {
+        int defaultLayout = getResources().getIdentifier(Partner.RES_DEFAULT_LAYOUT,
+                "xml", getPackageName());
+        return defaultLayout != 0;
+    }
+
+    public boolean hasFolder() {
+        int folder = getResources().getIdentifier(Partner.RES_FOLDER,
+                "xml", getPackageName());
+        return folder != 0;
+    }
+
+    public boolean hideDefaultWallpaper() {
+        int resId = getResources().getIdentifier(RES_DEFAULT_WALLPAPER_HIDDEN, "bool",
+                getPackageName());
+        return resId != 0 && getResources().getBoolean(resId);
+    }
+
+    public File getWallpaperDirectory() {
+        int resId = getResources().getIdentifier(RES_SYSTEM_WALLPAPER_DIR, "string",
+                getPackageName());
+        return (resId != 0) ? new File(getResources().getString(resId)) : null;
+    }
+
+    public boolean requiresFirstRunFlow() {
+        int resId = getResources().getIdentifier(RES_REQUIRE_FIRST_RUN_FLOW, "bool",
+                getPackageName());
+        return resId != 0 && getResources().getBoolean(resId);
+    }
+
+    public DeviceProfile getDeviceProfileOverride(DisplayMetrics dm) {
+        boolean containsProfileOverrides = false;
+
+        DeviceProfile dp = new DeviceProfile();
+
+        // We initialize customizable fields to be invalid
+        dp.numRows = -1;
+        dp.numColumns = -1;
+        dp.allAppsShortEdgeCount = -1;
+        dp.allAppsLongEdgeCount = -1;
+
+        try {
+            int resId = getResources().getIdentifier(RES_GRID_NUM_ROWS,
+                    "integer", getPackageName());
+            if (resId > 0) {
+                containsProfileOverrides = true;
+                dp.numRows = getResources().getInteger(resId);
+            }
+
+            resId = getResources().getIdentifier(RES_GRID_NUM_COLUMNS,
+                    "integer", getPackageName());
+            if (resId > 0) {
+                containsProfileOverrides = true;
+                dp.numColumns = getResources().getInteger(resId);
+            }
+
+            resId = getResources().getIdentifier(RES_GRID_AA_SHORT_EDGE_COUNT,
+                    "integer", getPackageName());
+            if (resId > 0) {
+                containsProfileOverrides = true;
+                dp.allAppsShortEdgeCount = getResources().getInteger(resId);
+            }
+
+            resId = getResources().getIdentifier(RES_GRID_AA_LONG_EDGE_COUNT,
+                    "integer", getPackageName());
+            if (resId > 0) {
+                containsProfileOverrides = true;
+                dp.allAppsLongEdgeCount = getResources().getInteger(resId);
+            }
+
+            resId = getResources().getIdentifier(RES_GRID_ICON_SIZE_DP,
+                    "dimen", getPackageName());
+            if (resId > 0) {
+                containsProfileOverrides = true;
+                int px = getResources().getDimensionPixelSize(resId);
+                dp.iconSize = DynamicGrid.dpiFromPx(px, dm);
+            }
+        } catch (Resources.NotFoundException ex) {
+            Log.e(TAG, "Invalid Partner grid resource!", ex);
+        }
+        return containsProfileOverrides ? dp : null;
+    }
+}