Multi-touch custom gestures
<p>Android SDK provides Gesture Builder application to create library of custom gestures and <code>GestureOverlayView</code> to recognize custom gestures from created library.
But I can create custom gesture only with single finger but multi-strokes. </p>

<p>How can I use these instruments to build and recognize multi-touch custom gestures ?</p>

<p>Example: 
I can create "plus" gesture and recognize it in my app, but i draw "plus" by one finger. I want to recognize "double circles" that can be drawn by two fingers at the same time.</p>
