Hey all, interested in some opinions. I bought a new iPhone 32gig 3GS a week before the new iPhone 4 ship date was announced. I missed a trade back by about 7 days! Anyway, I'm very happy with the 3GS and I'm disappointed the iPhone 4 didn't at lease have a slightly larger screen. Question, though, how much difference is there (other than the new display) between a late model 3GS and the iPhone 4? I'd have to pay nearly full price to go iP4 and I'm thinking it just wouldn't be worth it. I've read a lot of comments that seem to indicate that it's not all that much of an upgrade. Real world usage comments?