There's been alot of discussion about 3G coverage. Went to Apple store today and asked a genius about the iPhone. Then asked him what network he recommended. He said personally he uses wifi the majority of the time. This got me to realize that I use wifi the majority of the time and really 3G is only relevant not often. A co worker realized this too. He has 4 iPhones and since all iPhones use wifi most of the time he downgraded all lines from the unltd to the $15.