Seen at last year's CES, we now have some concrete specs on the Light Touch projector that transforms any flat surface into a 10.1-inch touchscreen.
Light Touch uses "holographic laser projection" technology to create a WVGA aka 800x480 resolution display. Infrared sensors are used to track motion. Basically, it works like all the other IR keyboards out there. When the beam of light is broken with your fingers, the projector translates that action into a button or command.
Off the bat, I can think of a million uses for one of these. A Light Touch would be a handy computer in the kitchen. I would never have to ruin a touchscreen with my meat-splattered fingers again.
The projector runs Adobe Flash Lite 3.1, has 2GB of internal storage, a MicroSD card slot (up to 32GB), a 3.5mm audio jack, Wi-Fi b/g, one USB port and a composite video out port.
It's too bad the Light Touch is a "reference product, available to key customers and partners" or else I'd totally consider buying one (at the right price).