I caught the last part of a clip on this on TV the other night and decided to check it out. It is pretty cool, the website can explain it much better than I can, but basically it is a giant touch screen tabletop that can do numerous things. They show some examples of paying for things with a credit card at a restaurant just by placing the card on the screen and dragging the food you chose over to it. It also shows an example where they place a digital camera on the screen and you just drag the photos off of it with your fingers. It is a really cool concept, I am really interested in seeing where it will go.
http://www.microsoft.com/surface/