The problem is that the definite way to go back on the iPhone is to swipe over the screen from left to right. That gets you back to where you come from every ti

The problem is that the definite way to go back on the iPhone is to swipe over the screen from left to right. That gets you back to where you come from every time. The other problem is that no application trains the user doing this with for example an animated hint. Knowing and using that makes the back button for users without disabilities superfluous.