We used a recent data visualisation project (London Air Data brondbjerg.co.uk/blog/2013/02/london-air-data-visualisation/) to experiment with the new Leap Motion controller.
As a quick proof of concept, we used the LeapMotionP5 (github.com/mrzl/LeapMotionP5) library for Processing to add Leap Motion control to allow gesture navigation of visualisation.
Now rather than using the mouse & various sliders to orient the 3D mesh we can take control over X&Y rotation and Zoom level just by moving a hand.
Move left & right rotates the model, moving up & down tilts the model and move forward & back zoom in / out.
Great work Leap Motion!!!!