Softkinetic
Softkinetic develops iisu, a gesture recognition platform for 3D depth-sensing cameras. Their software isn't used for Microsoft's Kinect, but actually supports a very broad range of hardware and thus could become the multiplatform standard for controller-less gesture recognition. A good example of what this technology is capable of is visible in this video.
Depth-sensing games demos
august 2008 - september 2008
Virtools scripting for two demos developped at Softkinetic to showcase iisu:
A penalty kick demo (not published, as far as I know).
A sword game demo (visible in the "TV Interface Prototype" video on Softkinetic's Media page).