Final proof on responsiveness. This doesn't event include Apple newest iPhone 5s loaded with the new A7 processor.

In its first TouchMarks benchmark test, the iPhone 5 responded to touches at an average time of 55 milliseconds, compared to 85 milliseconds for the iPhone 4. The closest Android device was the Samsung Galaxy S4 at 114 milliseconds.

via VentureBeat via Agawi Touchmarks