Future iPhone, Mac may power down when you look away

From MacBook Pro to iPad, Apple is investigating the use of gaze detection, and attention sensing, to know when you're not using a device and it can save battery power.Apple wants to preserve battery power every way it canApple devices already save power by turning themselves off, or dimming their screen, but it's quite crude. If you haven't touched the device for a certain period of time, if you haven't talked to Siri through it, then it powers down. Read more...