Some cities are bigger than others—San Antonio vs. Salem, for example—while Baltimore is actually do for an update. (All roads lead to Baltimore when it comes WiMAX.) Also, this are merely projections through the remainder of the year. It’ll still be a little while before other, bigger cities like New York and San Francisco get in on the WiMAX action.
Oh, and WiMAX, for you people who are blissfully unaware of its existence, is a wireless broadband technology. It’s still in the early stages of deployment around the U.S.