I have a few pdf's of edge coverage. I can send to the admin if he wants them. I have Chicago, Denver, Los Angeles, and New York, and upstate ny. I don't have anywhere to host them. I was given them anonymously.
Milwaukee has edge coverage too. I can tell you that.
Take them if you want them.
http://download.yousendit.com/9DB68DE30726294C
I can tell for sure that it's pretty close to being accurate in chicago. I lose edge in the south west suburbs when i leave I-55 and go on I-80. I Also lose Edge on I-88 (Regan Tollway..Ewww) just past the old dekalb toll plaza. It's gone by the time you get to the new toll plaza they just built. I don't lose edge going north to milwaukee at all. I actually got gprs just a mile or two away from Downtown Chicago for the past month! Madison st at Loomis st. (west loop). I called t-mobile up and they had to "reset the gprs parameters" and should be fixed. Will find out tomorrow night!