Haptic buttons I really couldn't care about. I was doubtful about the haptic home button and that haptic track pad, and both turned out beautifully. But dropping the mute switch seems like an absolute no no to me. The mute switch was one of the best, and most overlooked, UI decisions about the original iPhone. You can tell which way it's set, and turn it on or off, inside your pocket, without taking your phone out. The inability to do that was a massive problem with phones at the time. Please Apple, don't take us back to taking our phones out at the start of meetings/movies/etc, and fumbling around to make sure things are set right.