A hidden new iPhone feature launching this fall lets you control your phone without touching its screen (AAPL)

· Apple's iOS 14 update introduces a new accessibility feature called "Back Tap."
· "Back Tap" makes it possible to execute certain actions on your phone, like taking a screenshot or launching a shortcut, just by tapping on the back of your device two or three times.
· iOS 14 officially launches in the fall, but you can try...