An anecdotal bit of evidence, which is interesting to me: when I commute to Chicago, riding Metra UP-West Line, with my EV-DO capable blackberry on Verizon, if I sit on the north side of the train, I get EV-DO speeds nearly the entire way to the city. If I sit on the south side, I get the slower “1x” rates.

Apparently even Verizon keeps the rivalry alive….