Japan has some pretty high-tech trains, but bumpy rides are still common. If you're squashed between dozens of commuters and gripping a strap with one hand while holding reading material in the other, turning the page as the speeding carriage lurches to and fro can be downright dangerous.
That's why NTT DoCoMo has developed a prototype tablet that you can control with your eyes. The "i beam" has a gaze-tracking function that frees your other hand so you can hang on to that subway strap, or, for instance, pull a suitcase around if you're walking through an airport. … Read more