Of all the things we saw at CES, Tobii's eye-tracking Gaze interface was one of the most memorable, even if the execution was a bit flawed. Now the company's back with a next-gen sensor that fits on a single board and is 75 percent smaller than the iteration we saw at CES -- a milestone that will presumably allow it to accommodate a wider range of devices. Tobii also says the IS-2S eye tracker consumes 40 percent less power than its predecessor and will be cheaper to implement, though the company does
