Hot on the heels of the Adafruit competition, Matt Cutts (a search spam engineer at Google) is sponsoring two more $1,000 bounties for projects using Kinect. 'The first $1,000 prize goes to the person or team that writes the coolest open-source app, demo, or program using the Kinect. The second prize goes to the person or team that does the most to make it easy to write programs that use the Kinect on Linux.'"
Relatedly, reader imamac points out a video showing Kinect operating on OS X.