3D desktop done right

http://www.youtube.com/watch?v=6jhoWsHwU7w

Google recently bought BumpTop, and I have to say, I think they're doing 3D desktop right, especially in light of the multi-touch stuff they're showing off here. Very nice. The photo editing stuff caught my attention because it's doing "applicationy" things in a main computing space, which is kind of novel. Fascinating.