While that would be very very cool I don't think it would work with the current hardware. It works by projecting a bunch of dots on the scene in IR (so you can't see them) then tracking them with a camera. So multiple Kinects are going to confuse each other (probably, I assume so anyway).
Just got my Kinect in the post this morning, very excited about what I can do with it!
Just got my Kinect in the post this morning, very excited about what I can do with it!