Extreme Reality (XTR3D) is demonstrating its new touch-free gesture control interface for laptops at this year's GDC. The "iZi" (pronounced 'easy') allows gamers to easily control PC games and applications using body gestures and/or movement.
European software maker Extreme Reality (XTR3D) wants to make controlling your computer programs, games and mobile devices as easy as waving your hand. At least, that's what their Izi (pronounced "easy") software is for.
Kinect has already been hacked to do this. There's also a great brick type game on the Mac app store where you use your hands as controls via the isight camera. I love this technology!