If the latest rumors are true, Apple is bulking up the vibration unit in the next iPhone to allow for more specific kinds of vibrations and in a greater variety of areas. Apple Insider is reporting that a new, more expensive motor could be part of the iPhone 6 and it will allow for "haptic feedback" which, depending on where the user touches the screen, can give physical feedback instead of just an audible click.
Perhaps this could make touch typing easier, or more likely it could make gaming more interesting. With iOS 6 and 7, Apple has added more schemes to their vibration mechanism, allowing blind users to be notified who is calling using specific vibration patterns. It's like physically based Caller ID. This new motor could make more patterns possible.
The timing could be right. A motor pushing against the screen, in different locations, might cause the glass screen to crack, with the current iPhone. The next iPhone looks to have a much more flexible and robust screen, likely a result of Apple's sapphire factories, and such a screen could accommodate the vibrations. We shall see—and feel—soon!
