EVDO = 700 kps, EDGE = 200 kps.
right now sprint & verizon's EVDO is the fastest, plus EVDO REV A is avail in a lot a areas now and it doubles the EVDO speeds. Sorry ATT and Cingular are a lot slower. Sprint has the best deals (at least right now - it changes often) when it comes to $ if you plan to use it a lot.
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