Now this is a cool idea. Take two projectors, some cameras, some IR sensors, and build yourself a multi-touch curved display that fits in the form factor of a desk. Take a look at the video to see some of the uses that they put it to. Personally, after looking at their photo application, I think that this might be great for a video editing application.

BendDesk is a curved interactive surface that combines a horizontal and vertical multi-touch surface seamlessly with a curve.