I saw this earlier today, and to be honest, it did reinvigorate my enthusiasm and faith in Natal actually being ground breaking or at the very least fun. However, until I see specific games or applications for it, it won't be getting my money.
same. I think most Game developers are worried it might be a flop, so are straying away for the time being. I hope it has more play time like the PS3, because that would certainly tempt me.