Nice initiative! (Despite Leap Motion is not open source)
The Leap is an incredible new motion-tracking device from Leap Motion. It tracks movements up to 10 µm (!) in 8 cubic feet of 3D space.
OpenLeap is a community of open-source enthusiasts making software for this wonderful device.
Started by Owen Versteeg as an open-source initiative for the Leap. Currently at 118 members and counting.
OpenLeap · Open-source Leap programs.