Sarcastic Gamer's take...
That is an interesting gadget. Way too pricey for me and I'd be terribly afraid to set anything on it.
I like this assessment:
http://sarcasticgamer.com/wp/index.php/2007/06/ms-surface-how-we-would-have-done-it.html
Paris because she probably knows about being interactive on a table.
Hmm, can it recognize butt-prints?