@Dan Links: Tower range is more about spectrum as it is about technology- a single tower on the 700MHz frequency that VZ and T will be using for LTE will have more coverage than a single tower on the 2.5 GHz range Sprint is using for WiMax. Having less towers, though, is not a 100% benefit- it means more users on a single tower, which means each tower needs more backhaul capacity.
World's Biggest WiMax Bet [View article]