Future iPhones could be touch-sensitive all over

In the future, you might be able to grab your iPhone and control it from any angle. Touchable, scrollable input spots on the phone's backside could revolutionize the device, according to a new patent.    Apple was recently granted the patent, which describes a super space age-sounding "quantum tunneling" material that could eliminate the need for physical buttons and bring touch control to just about any surface.  SEE ALSO: Future iPhones and iPads could have stretchy screens The