(TED is an invitation only annual conference dedicated to "Ideas worth spreading." The acronym stands for Technology Entertainment Design. Past speakers: Bill Clinton, Bono, Dave Eggers, Bill Gates, Jane Go0dall.)
SixthSense was created in a lab at MIT, "spearheaded by student Pranav Mistry."
"It is a wearable device with a projection screen that paves the way for profound, data-rich interaction with our environment."
The description does the device no justice though, you must watch the clip. Think Minority Report.
Watch the whole video.