I think Apple have made a big design mistake with the way letter boxed apps are handled on iPhone 5 & iOS 6. The problem I believe comes from the fact that the black banding appears both at the top and bottom of the screen. What this does is create a difference in keyboard positioning between apps that are letterboxed and apps that have been updated for the taller screen. I am, in fact, typing this via tapatalk on the iPhone 5, which is letterboxed. When I go back to a native iPhone 5 app, I will have slight problems adapting to the keyboard positioning. Anyone else think this is a design problem?