This is freaking awesome: Two MIT guys, sixth-year grad student Robert Y. Wang of the Computer Science and Artificial Intelligence Lab and Associate Professor Jovan Popovic, have come up with a brilliant and inexpensive hand-tracking interface. It's basically just a webcam and a flamboyantly-colored glove, the kind of thing a football player would beat you up for wearing in a small-town conservative high school:
For interested parties, Wang and Popovic have tons-o'-videos showing proof of concept and different applications of the technology here.
Any chance this will see mainstream application? Perhaps--Popovic's also a Senior Research Scientist at Adobe! Photoshop gloves, anyone?