"The vision technology allows that surface to become interactive, so that while the computer is projecting the information on to, say, your table top, the worker can interact with that the thing which is basically just light by using light, " Lai said.

CNN: Your desk, chair are watching you

The original grand vision of Tobii's founders was to put eye-tracking technology into every computer, but there are some that wonder if eye-tracking might be the next Bluetooth, useful but not widely used.

CNN: Watch this space: Eye-control to give technology a new look