I really hope the screen size doesn't get bigger, but many people seem to be falling for "bigger is better." Apple probably needs to increase the screen size to "compete," which is unfortunate for two reasons:
1: I don't want to carry a brick around in my pocket.
2: Dustin Curtis makes a good point about the screen size and usability of 3.5" vs bigger screens (http://dcurt.is/2011/10/03/3-point-5-inches/):
Image
With a 3.5" screen, your thumb can reach across the whole screen, thus the iPhone is a "one hand" device. When the screen size increases, you need to use two hands to reach the entire surface.
Very good points, having considered that I think Windows Phone 7 has actually tackled that problem without sacrificing screen size.. As you can see the tiles are very much at reach and the screen size is still larger..
