Turn your skin into a touchscreen!

This goes beyond Minority Report! Researchers at Carnegie Mellon University and Microsoft's Redmond research lab are investigating how to turn your body into both a touchscreen "display" and input device using an arm band with a pico projector embedded inside. Blogger Barb Dybwad asks if people are interested in turning their bodies into touchscreens. I think it'd be interesting for demonstration purposes, but I wouldn't be interested in everyday living. What do you think?