I don't know if anyone else feels this way, but it seems like Apple took the lazy approach with the extra real estate on the iPhone 5. You get to see more content length-wise but was that ever an issue? Either way, I did a crappy mock-up in Paint on how Apple could have added an extra row on the keyboard & still had more viewing room than the 4S. The bottom of the keyboard in iOS 6 is so cramped, they could move stuff up there and add other popular characters. How many times you do you accidentally tap the microphone or other other keys at the bottom, probably more than you like I bet.