I'm in Chicago and I've noticed that after the update to 4.0.1 my iPhone is on Edge a lot more than it was before (and also a lot more than my iPhone 3G was). I realize that they changed the number of bars displayed, but how come I end up on Edge so much? I also notice that my speed test on Edge is awful (typically 40k down even with full bars) and I often don't get any real internet usage. I can't connect to my mail server and webpages won't open. Are other people noticing this since the upgrade either in Chicago or in general? Thanks.