When he encounters someone at a party, the system projects a cloud of words on the person's body to provide more information about him -- his blog URL, the name of his company, his likes and interests. "This is a more controversial [feature]," Maes said over the audience's laughter.
In another frame, Mistry picks up a boarding pass while he's sitting in a car. He projects the current status of his flight and gate number he's retrieved from the flight-status page of the airline onto the card.
"If you need to know what time it is, it's as simple as drawing a watch on your arm," Maes said, while Mistry used his right finger to draw a circle on his left wrist. The face of a watch popped up on his hand, which the audience liked.
When Mistry folds his hands in "namaste" fashion, the system opens a menu to allow him to choose an application. If he wants to read e-mail on his phone, he draws an @ symbol in the air with his finger. He can project a phone pad onto his palm and dial a number without removing the phone from his pocket. As he reads the newspaper on the subway he can project a video onto the page that provides more information about the topic he's reading.
Maes and Mistry told Wired they've been working on the project for four months, day and night, and have filed a patent for it.
Maes' MIT group, which includes seven graduate students, were thinking about how a person could be more integrated into the world around them and access information without having to do something like take out a phone. They initially produced a wristband that would read an RFID tag to know, for example, which book a user is holding in a store.
Very compelling. Real world-looking stuff.