Next Generation Input Devices?

TenDimensions asks: "Has anyone at Slashdot seen this new input device and tried it out? What's it like? There's no doubt that new computer input devices are on the way (did anyone use the Minority Report-style hand-gesture detector at the car show a couple of months ago?) This seems interesting enough to try out, but I thought I'd ask you folks before I plunked down the money."