Ive read a lot of articles about 4G and watched innumerable commercials about it, which usually involve lightning striking something. I get it, lightning imagery for lightning fast speeds. Currently, Im trapped in a 3G world as I have an iPhone4 with Verizon. So for those of you with 4G, is it worth it to upgrade my phone just to be able to use 4G? Is the speed upgrade really noticeable? Are you seeing your billing rates increasing because of it? Is anyone in the same boat, wondering whether its worth it?