One of the Galaxy S III's most vaunted features was Smart Stay: when it was active, the smartphone's display would stay awake as long as its owner did. A reported Samsung insider's tip to the New York Times claims the Galaxy S IV will take that intelligent use of the camera one step further with eye-based scrolling. Theoretically, readers will never have to put finger to glass when scrolling downwards; the phone can tell when they're looking at the bottom of the page and move to the next section on its own.
