There have been plenty of Kinect hacks since Microsofts motion-detecting Xbox add-on was released, but this may be the most impressive: an autonomous flying machine.
Yes, this helicopter has a Kinect on board, one that's connected to a Linux box. It uses the onboard sensors and cameras to identify its surroundings, staying at a stable altitude and avoiding obstacles. It's really something! Somehow, hackers have made the Kinect much cooler than Microsoft did, because I would much rather play with this than Kinectimals.