Microsoft announced the SecondLight table a few days ago, offering plenty of explanations as to how this modified, quasi-X-ray Surface table works and how one might use it, but little in the way of visual aides. The dual-projection system, by which the table identifies where it is being touched and projects a second, alternative image didn't sound like the kind of thing that would look, well, seamless. As it turns out, it does. Say what you will about the SecondLight's incredibly complicated design, but you can't deny that, in motion, the hidden overlay concept is pretty impressive. [PCPro via Slashdot]