Yes.  Microsoft revealed technology that turns any surface into a touch screen.  Named “OmniTouch,” it allows for multi-touch input on everyday surfaces, such as your arm, a wall, your dog even.  Ok, maybe not your dog.

“We wanted to capitalize on the tremendous surface area the real world provides,” commented Hrvoje Benko of the National Interactive Research Group at Microsoft. The technology combines a laser-based pico projector and depth-sensing camera, the latter not unlike Microsoft's Kinect camera for the Xbox 360.

Portability and convenience are two huge benefits of the technology.