Many believe the next iPhone, the iPhone 5 or New iPhone, will have a larger screen. I would certainly welcome a few millimetres more, as long as the new device will fit in my pocket. There are limits, though, and I could not imagine being happy with a 5-in monster.
A slightly larger screen, say 4 inches diagonally, would be a big improvement for those, like me, who do a lot of work and reading on the iPhone. As you know, I believe the iPhone is the best ebook reader, knocking several spots of both iPad and Kindle.
I was interested to read this article by Timothy Collins with his well reasoned paen to the larger screen.
I shall keep my fingers crossed that Apple see the wisdom of just a little bit more.