UC Davis's Oliver Kreylos has been responsible for two of our most impressive Kinect hacks yet. He was one of the first to get proper 3D video out of the thing, following that up by pairing up two of the cameras, one to fill in the gaps of the other. You might have thought he was just playing around but no -- oh no. There was a method to the madness and his ulterior motive has been revealed: 3D telepresence.