User phoenixbf just made a quick test with OpenSceneGraph + Leap Motion.
phoenixbf These are some quick and basic tests integrating the LeapMotion device with a specific navigation interface I developed. This first experiment is based on a dual-axis model with the intertial ring – in this case controlled by a finger – used to explore large and complex 3D scenes (even remote) in real-time thanks to the OpenSceneGraph framework. Music by: http://goo.gl/iKtqEM