Upon getting a Leap Motion and wanting to hack the ever-loving crap out of it, we decided to make some gesture recognizers that allow listening and handling motions such as:

  Did swipe right with x fingers, y hands
  Did pan on screen with x fingers, y hands
  Did tap with x fingers, y hands
  Did rotate with x fingers, y hands
  Did pinch with x fingers, y hands

These libraries make it easy to create a WPF or a Cocoa Mac OS X application for manipulating and using the Leap Motion. These are built on top of the Leap SDK, and a level of abstraction up. We hope that this can be the foundation for a community driven, gesture recognition abstraction layer for the Leap Motion.

Here are the links:

https://github.com/uacaps/MotionGestureRecognizers-ObjC

https://github.com/uacaps/MotionGestureRecognizers-CSharp