Leap Motion – A low-cost hand/finger interface
Similar to the Microsoft Kinect, Leap Motion presents a powerful hand interface that can be used as a controller device for digital puppetry or for many other applications like painting, modeling…
Users can define their own gestures and mapped them using the free SDK delivered with the piece of hardware.
“Leap represents an entirely new way to interact with your computers. It””s more accurate than a mouse, as reliable as a keyboard and more sensitive than a touchscreen. For the first time, you can control a computer in three dimensions with your natural hand and finger movements.”
https://www.youtube.com/watch?v=3b4w749Tud8&feature=player_embedded