diff --git a/include/ui/EventHub.h b/include/ui/EventHub.h
index d322a34..5be17d3 100644
--- a/include/ui/EventHub.h
+++ b/include/ui/EventHub.h
@@ -60,6 +60,32 @@
 class KeyLayoutMap;
 
 /*
+ * Input device classes.
+ */
+enum {
+    /* The input device is a keyboard. */
+    INPUT_DEVICE_CLASS_KEYBOARD      = 0x00000001,
+
+    /* The input device is an alpha-numeric keyboard (not just a dial pad). */
+    INPUT_DEVICE_CLASS_ALPHAKEY      = 0x00000002,
+
+    /* The input device is a touchscreen (either single-touch or multi-touch). */
+    INPUT_DEVICE_CLASS_TOUCHSCREEN   = 0x00000004,
+
+    /* The input device is a trackball. */
+    INPUT_DEVICE_CLASS_TRACKBALL     = 0x00000008,
+
+    /* The input device is a multi-touch touchscreen. */
+    INPUT_DEVICE_CLASS_TOUCHSCREEN_MT= 0x00000010,
+
+    /* The input device is a directional pad. */
+    INPUT_DEVICE_CLASS_DPAD          = 0x00000020,
+
+    /* The input device is a gamepad (implies keyboard). */
+    INPUT_DEVICE_CLASS_GAMEPAD       = 0x00000040
+};
+
+/*
  * Grand Central Station for events.
  *
  * The event hub aggregates input events received across all known input
diff --git a/include/ui/Input.h b/include/ui/Input.h
index a7d23d4..f069888 100644
--- a/include/ui/Input.h
+++ b/include/ui/Input.h
@@ -32,7 +32,7 @@
     /*
      * Private control to determine when an app is tracking a key sequence.
      */
-    KEY_EVENT_FLAG_START_TRACKING = 0x40000000
+    AKEY_EVENT_FLAG_START_TRACKING = 0x40000000
 };
 
 /*
@@ -130,6 +130,11 @@
     float y;
     float pressure;
     float size;
+    float touchMajor;
+    float touchMinor;
+    float toolMajor;
+    float toolMinor;
+    float orientation;
 };
 
 /*
@@ -143,14 +148,14 @@
 
     inline int32_t getDeviceId() const { return mDeviceId; }
 
-    inline int32_t getNature() const { return mNature; }
+    inline int32_t getSource() const { return mSource; }
     
 protected:
-    void initialize(int32_t deviceId, int32_t nature);
+    void initialize(int32_t deviceId, int32_t source);
 
 private:
     int32_t mDeviceId;
-    int32_t mNature;
+    int32_t mSource;
 };
 
 /*
@@ -160,7 +165,7 @@
 public:
     virtual ~KeyEvent() { }
 
-    virtual int32_t getType() const { return INPUT_EVENT_TYPE_KEY; }
+    virtual int32_t getType() const { return AINPUT_EVENT_TYPE_KEY; }
 
     inline int32_t getAction() const { return mAction; }
 
@@ -188,7 +193,7 @@
     
     void initialize(
             int32_t deviceId,
-            int32_t nature,
+            int32_t source,
             int32_t action,
             int32_t flags,
             int32_t keyCode,
@@ -216,7 +221,7 @@
 public:
     virtual ~MotionEvent() { }
 
-    virtual int32_t getType() const { return INPUT_EVENT_TYPE_MOTION; }
+    virtual int32_t getType() const { return AINPUT_EVENT_TYPE_MOTION; }
 
     inline int32_t getAction() const { return mAction; }
 
@@ -264,6 +269,26 @@
         return getCurrentPointerCoords(pointerIndex).size;
     }
 
+    inline float getTouchMajor(size_t pointerIndex) const {
+        return getCurrentPointerCoords(pointerIndex).touchMajor;
+    }
+
+    inline float getTouchMinor(size_t pointerIndex) const {
+        return getCurrentPointerCoords(pointerIndex).touchMinor;
+    }
+
+    inline float getToolMajor(size_t pointerIndex) const {
+        return getCurrentPointerCoords(pointerIndex).toolMajor;
+    }
+
+    inline float getToolMinor(size_t pointerIndex) const {
+        return getCurrentPointerCoords(pointerIndex).toolMinor;
+    }
+
+    inline float getOrientation(size_t pointerIndex) const {
+        return getCurrentPointerCoords(pointerIndex).orientation;
+    }
+
     inline size_t getHistorySize() const { return mSampleEventTimes.size() - 1; }
 
     inline nsecs_t getHistoricalEventTime(size_t historicalIndex) const {
@@ -294,9 +319,29 @@
         return getHistoricalPointerCoords(pointerIndex, historicalIndex).size;
     }
 
+    inline float getHistoricalTouchMajor(size_t pointerIndex, size_t historicalIndex) const {
+        return getHistoricalPointerCoords(pointerIndex, historicalIndex).touchMajor;
+    }
+
+    inline float getHistoricalTouchMinor(size_t pointerIndex, size_t historicalIndex) const {
+        return getHistoricalPointerCoords(pointerIndex, historicalIndex).touchMinor;
+    }
+
+    inline float getHistoricalToolMajor(size_t pointerIndex, size_t historicalIndex) const {
+        return getHistoricalPointerCoords(pointerIndex, historicalIndex).toolMajor;
+    }
+
+    inline float getHistoricalToolMinor(size_t pointerIndex, size_t historicalIndex) const {
+        return getHistoricalPointerCoords(pointerIndex, historicalIndex).toolMinor;
+    }
+
+    inline float getHistoricalOrientation(size_t pointerIndex, size_t historicalIndex) const {
+        return getHistoricalPointerCoords(pointerIndex, historicalIndex).orientation;
+    }
+
     void initialize(
             int32_t deviceId,
-            int32_t nature,
+            int32_t source,
             int32_t action,
             int32_t edgeFlags,
             int32_t metaState,
diff --git a/include/ui/InputDevice.h b/include/ui/InputDevice.h
index 4420600..3b9c70e 100644
--- a/include/ui/InputDevice.h
+++ b/include/ui/InputDevice.h
@@ -42,6 +42,7 @@
 extern int32_t updateMetaState(int32_t keyCode, bool down, int32_t oldMetaState);
 extern int32_t rotateKeyCode(int32_t keyCode, int32_t orientation);
 
+
 /*
  * An input device structure tracks the state of a single input device.
  *
@@ -168,8 +169,11 @@
                 FIELD_ABS_MT_POSITION_X = 1,
                 FIELD_ABS_MT_POSITION_Y = 2,
                 FIELD_ABS_MT_TOUCH_MAJOR = 4,
-                FIELD_ABS_MT_WIDTH_MAJOR = 8,
-                FIELD_ABS_MT_TRACKING_ID = 16
+                FIELD_ABS_MT_TOUCH_MINOR = 8,
+                FIELD_ABS_MT_WIDTH_MAJOR = 16,
+                FIELD_ABS_MT_WIDTH_MINOR = 32,
+                FIELD_ABS_MT_ORIENTATION = 64,
+                FIELD_ABS_MT_TRACKING_ID = 128
             };
 
             uint32_t pointerCount;
@@ -179,7 +183,10 @@
                 int32_t absMTPositionX;
                 int32_t absMTPositionY;
                 int32_t absMTTouchMajor;
+                int32_t absMTTouchMinor;
                 int32_t absMTWidthMajor;
+                int32_t absMTWidthMinor;
+                int32_t absMTOrientation;
                 int32_t absMTTrackingId;
 
                 inline void clear() {
@@ -206,6 +213,11 @@
         int32_t y;
         int32_t pressure;
         int32_t size;
+        int32_t touchMajor;
+        int32_t touchMinor;
+        int32_t toolMajor;
+        int32_t toolMinor;
+        int32_t orientation;
     };
 
     struct TouchData {
@@ -236,6 +248,7 @@
             AbsoluteAxisInfo yAxis;
             AbsoluteAxisInfo pressureAxis;
             AbsoluteAxisInfo sizeAxis;
+            AbsoluteAxisInfo orientationAxis;
         } parameters;
 
         // The touch data of the current sample being processed.
@@ -290,6 +303,8 @@
 
             int32_t sizeOrigin;
             float sizeScale;
+
+            float orientationScale;
         } precalculated;
 
         void reset();
diff --git a/include/ui/InputDispatcher.h b/include/ui/InputDispatcher.h
index eb8f820..674852a 100644
--- a/include/ui/InputDispatcher.h
+++ b/include/ui/InputDispatcher.h
@@ -167,10 +167,10 @@
      */
     virtual void notifyConfigurationChanged(nsecs_t eventTime) = 0;
     virtual void notifyAppSwitchComing(nsecs_t eventTime) = 0;
-    virtual void notifyKey(nsecs_t eventTime, int32_t deviceId, int32_t nature,
+    virtual void notifyKey(nsecs_t eventTime, int32_t deviceId, int32_t source,
             uint32_t policyFlags, int32_t action, int32_t flags, int32_t keyCode,
             int32_t scanCode, int32_t metaState, nsecs_t downTime) = 0;
-    virtual void notifyMotion(nsecs_t eventTime, int32_t deviceId, int32_t nature,
+    virtual void notifyMotion(nsecs_t eventTime, int32_t deviceId, int32_t source,
             uint32_t policyFlags, int32_t action, int32_t metaState, int32_t edgeFlags,
             uint32_t pointerCount, const int32_t* pointerIds, const PointerCoords* pointerCoords,
             float xPrecision, float yPrecision, nsecs_t downTime) = 0;
@@ -232,10 +232,10 @@
 
     virtual void notifyConfigurationChanged(nsecs_t eventTime);
     virtual void notifyAppSwitchComing(nsecs_t eventTime);
-    virtual void notifyKey(nsecs_t eventTime, int32_t deviceId, int32_t nature,
+    virtual void notifyKey(nsecs_t eventTime, int32_t deviceId, int32_t source,
             uint32_t policyFlags, int32_t action, int32_t flags, int32_t keyCode,
             int32_t scanCode, int32_t metaState, nsecs_t downTime);
-    virtual void notifyMotion(nsecs_t eventTime, int32_t deviceId, int32_t nature,
+    virtual void notifyMotion(nsecs_t eventTime, int32_t deviceId, int32_t source,
             uint32_t policyFlags, int32_t action, int32_t metaState, int32_t edgeFlags,
             uint32_t pointerCount, const int32_t* pointerIds, const PointerCoords* pointerCoords,
             float xPrecision, float yPrecision, nsecs_t downTime);
@@ -281,7 +281,7 @@
 
     struct KeyEntry : EventEntry {
         int32_t deviceId;
-        int32_t nature;
+        int32_t source;
         uint32_t policyFlags;
         int32_t action;
         int32_t flags;
@@ -301,7 +301,7 @@
 
     struct MotionEntry : EventEntry {
         int32_t deviceId;
-        int32_t nature;
+        int32_t source;
         uint32_t policyFlags;
         int32_t action;
         int32_t metaState;
@@ -424,11 +424,11 @@
 
         ConfigurationChangedEntry* obtainConfigurationChangedEntry(nsecs_t eventTime);
         KeyEntry* obtainKeyEntry(nsecs_t eventTime,
-                int32_t deviceId, int32_t nature, uint32_t policyFlags, int32_t action,
+                int32_t deviceId, int32_t source, uint32_t policyFlags, int32_t action,
                 int32_t flags, int32_t keyCode, int32_t scanCode, int32_t metaState,
                 int32_t repeatCount, nsecs_t downTime);
         MotionEntry* obtainMotionEntry(nsecs_t eventTime,
-                int32_t deviceId, int32_t nature, uint32_t policyFlags, int32_t action,
+                int32_t deviceId, int32_t source, uint32_t policyFlags, int32_t action,
                 int32_t metaState, int32_t edgeFlags, float xPrecision, float yPrecision,
                 nsecs_t downTime, uint32_t pointerCount,
                 const int32_t* pointerIds, const PointerCoords* pointerCoords);
diff --git a/include/ui/InputTransport.h b/include/ui/InputTransport.h
index 226d1d5..31ec701 100644
--- a/include/ui/InputTransport.h
+++ b/include/ui/InputTransport.h
@@ -119,7 +119,7 @@
     };
 
     int32_t deviceId;
-    int32_t nature;
+    int32_t source;
 
     union {
         struct {
@@ -198,7 +198,7 @@
      */
     status_t publishKeyEvent(
             int32_t deviceId,
-            int32_t nature,
+            int32_t source,
             int32_t action,
             int32_t flags,
             int32_t keyCode,
@@ -216,7 +216,7 @@
      */
     status_t publishMotionEvent(
             int32_t deviceId,
-            int32_t nature,
+            int32_t source,
             int32_t action,
             int32_t edgeFlags,
             int32_t metaState,
@@ -233,7 +233,7 @@
     /* Appends a motion sample to a motion event unless already consumed.
      *
      * Returns OK on success.
-     * Returns INVALID_OPERATION if the current event is not a MOTION_EVENT_ACTION_MOVE event.
+     * Returns INVALID_OPERATION if the current event is not a AMOTION_EVENT_ACTION_MOVE event.
      * Returns FAILED_TRANSACTION if the current event has already been consumed.
      * Returns NO_MEMORY if the buffer is full and no additional samples can be added.
      */
@@ -272,7 +272,7 @@
     status_t publishInputEvent(
             int32_t type,
             int32_t deviceId,
-            int32_t nature);
+            int32_t source);
 };
 
 /*