Most android phones are cumbersome to carry in my pockets. I'm glad they are staying with this size, instead of succumbing to some nerd's fantasy.
I'm sure you're talking about 'nerd's fantasy' as in larger screen? Well there's those who want Apple to make a huge iPhone housing a 4.3 inch monster-screen.
Then there's the rest of us, who just wants Apple to put up a challenge, making a phone that houses as big a screen as practically possible without sacrificing size, weight and battery. Would that be 3.7 inch? 4? We don't know, we just notice that tech does indeed moves forward, and iPhone 4 has some bezel in every direction from the screen that is up for grabs...
I think most people here are in the last group. I also would be very disappointed if iPhone 5 is more clunky to carry around, but I doubt that will happen.