I would hope to see a 4.5 or 4.3 inch screen, i've been using my skrocket recently more than the 4S because the size makes all the difference. Its all about the design of the phone around the screen. If the iphone were to keep the 4 shape and have a 4.5 inch screen it would be awful. The skyrocket has a nice shape for the hand, the iPhone not as much. They need to go back to a rounded design like the 3gs if they increase screen size. Try the droid razr and an htc 4.3 inch phone and tell me the razr doesnt feel like 4.7. There will be a great deal of sales lost if Apple stays under 4 inches, and even 4 will be too small for many power users