"Touchscreen" ANYTHING [+ video links] :: Symblogogy

Really ... and you don't even need a screen.

"Touchscreen" a plywood board, a plate of glass, a school chalkboard, a field of grass, an icerink, a kitchen sink, a blank wall, an exhibition hall, a block of wood, and an automobile hood.

Now any surface can be a computer interface surface with the software and microphone sensors used in a system called Tai-Chi which translates to Tangible Acoustic Interfaces for Computer-Human Interaction (demonstration video link below).

So feel free to "touchscreen" for the good ... your whole neighborhood!