I'm thinking the Kinect will be used in conjunction with the human players, very much like '08 was with the IR remotes used to guide the robots in autonomous. I can't see it going on the robots and serving as anything more than simply a regular camera. Look at what the Kinect was made for... it was made to interact with people, bodies. It only makes sense if it's a human player input. Obviously the drivers won't be controlling the robots by dancing out the Y-M-C-A (although that would be priceless to watch!
). I would also venture the guess that it's not going to be used on the robots, as that brings into question issues of power, weight, and interaction with the cRio, as well as the complications of having multiple cameras with multiple sets of IR lasers on the field. If I had to make a prediction, I'd say it'll be used during autonomous.
That being said, I think the Tweedles were on to something...