... major cities where it's capacity and 2.5 ghz spectrum is most optimized. It serves about 132 million subs in the most densely populated geographies.
You're right... many EVO and EPIC owners aren't in 4G service areas. The suburbs that Clearwire has launched are those with the highest concentrations of out-of-market 4G enabled handsets but given their focus on cost cuts and only the most optimal capital expenditures, there are few new launches pending a deal to launch an overlay of LTE-Advanced on their network.
Clearwire has a test signal in my city but hasn't launched. I'm holding out until it's available but may go with HSPA+ if Sprint/CLWR doesn't make WiMax available here soon...
... I have no interest in Sprint's I-phone on what is becoming a bogged-down 3G network. Like AT&T, sprint is not ready for the I-phone load with their skimpy spectrum. Except for brisk sales of the $650 I-phones for $149, the actual service for the I-phones is starting to look like as much of a disaster as Sprint's lack of a breakout of the cost/benefit of I-phone at their Oct. 7th presentation.
Sprint's Chairman has apologized to America for Dan Hesse's monumental screw up of that presentation but Dan Hesse hasn't been fired yet.