NTT DoCoMo's i beam tablet prototype is driven by your eyes
Another prototype from DoCoMo aimed at Nihon's commuters, the i beam concept tablet forgoes any touch at all, allowing the user (once they're at the specified 'sweet spot') to navigate around apps and screens using your eyes. Two sensors along the bottom edge of the tablet track both of your eyes and after a slightly laborious configuration setup, we were able to tour around the prototype slabs features without laying a finger on it. The navigational dot was a little erratic, but we'll put that down to prototype nerves. The tablet was otherwise able to follow our eye-line and fulfill what we wanted it to do.
Source : www.endgaget.com