This is one of those items that look absolutely amazing, but when you actually get them, you can't find any good use for them. Yes, of course I want to put my drink on the table, yes please, spill it all over the "surface" and let the table interact with the drink itself..
Also for some reason I highly doubt that Microsoft is capable of delivering such a smooth experience that ads wants you to believe in. I bet there's USB-port somewhere where you have to stick in your usb-stick with drivers for your device. And of course when you are at your friend's place, you forgot the drivers home and you can forget watching photos.
And yes, of course I don't have anything else to do than draw all night long with different objects..
One group that will benefit from this technology is photographers. Of course "the surface" needs to be able to show colors correctly and so on.
*edit* I just found out that it's a HUGE table. It's not just a "surface". It's just a big CRT screen with touch screen... *cough*bullshit*cough*
Maybe Apple can release similar product tomorrow? They can just flip iMac over and replace the original LCD panel with touch screen. It's smaller, probably better and doesn't crash as often.