Pan Gesture doesn't get triggered

Question

Can Some one explain me why my "TransformGestureEvent.GESTURE_PAN" doesn't get triggered?
All the other gesture events are triggered.
I find it a bit confusing
Oh yeah, i am developing for every platform but testing on a google phone nexus S
package
    import flash.display.Sprite;
    import flash.display.StageAlign;
    import flash.display.StageScaleMode;
    import flash.events.TransformGestureEvent;
    import flash.geom.Point;
    import flash.ui.Multitouch;
    import flash.ui.MultitouchInputMode;
    public class PanTest extends Sprite
        private var _target:Sprite;
        public function PanTest()
            // support autoOrients
            stage.align = StageAlign.TOP_LEFT;
            stage.scaleMode = StageScaleMode.NO_SCALE;
            Multitouch.inputMode = MultitouchInputMode.GESTURE;
            _target = new Sprite();
            _target.graphics.beginFill(0x99ff00);
            _target.graphics.drawRect(-200, -200, 400, 400);
            _target.transform.matrix.tx = 200;
            _target.transform.matrix.ty = 200;
            _target.x = stage.stageWidth / 2;
            _target.y = stage.stageHeight / 2;
            addChild(_target);
            if (Multitouch.supportsGestureEvents)
                for each (var item:String in Multitouch.supportedGestures)
                    trace(item)
                    switch (item)
                        case TransformGestureEvent.GESTURE_PAN:
                            _target.addEventListener(TransformGestureEvent.GESTURE_PAN, _gestureHandler);
                            break;
                        case TransformGestureEvent.GESTURE_ROTATE:
                            _target.addEventListener(TransformGestureEvent.GESTURE_ROTATE, _gestureHandler);
                            break;
                        case TransformGestureEvent.GESTURE_SWIPE:
                            _target.addEventListener(TransformGestureEvent.GESTURE_SWIPE, _gestureHandler);
                            break;
                        case TransformGestureEvent.GESTURE_ZOOM:
                            _target.addEventListener(TransformGestureEvent.GESTURE_ZOOM, _gestureHandler);
                            break;
        protected function _gestureHandler(e:TransformGestureEvent):void
            trace(e.type);
            switch (e.type)
                case TransformGestureEvent.GESTURE_PAN:
                    var prevPoint:Point = new Point(_target.x, _target.y);
                    _target.x += e.offsetX * 3;
                    _target.y += e.offsetY * 3;
                    break;
                case TransformGestureEvent.GESTURE_ROTATE:
                    _target.rotation += e.rotation;
                    break;
                case TransformGestureEvent.GESTURE_SWIPE:
                    break;
                case TransformGestureEvent.GESTURE_ZOOM:
                    _target.scaleX *= e.scaleX;
                    _target.scaleY *= e.scaleY;
                    break;

Answer 1

It might be to do with the pan gesture working with phases
if (e.phase==GesturePhase.BEGIN) {
   // panel_mc.txt.text = "Begin";
    e.target.scaleX = 1.1;
    e.target.scaleY = 1.1;
if (evt.phase==GesturePhase.UPDATE) {
   // panel_mc.txt.text = "Update";
    e.target.alpha = 0.5;
if (evt.phase==GesturePhase.END) {
   // panel_mc.txt.text = "End";
    e.target.scaleX = 1;
    e.target.scaleY = 1;