reply to IPPlanMan
Re: AT&T? Hello? Personally - I don't think they really care - or they're too stingy.
They'll milk out HPSA+ and deploy LTE where they don't have enough spectrum for 3G, or a strategic markets.
Verizon / Sprint have more incentive - shed the 1x/EVDO, as its going to be hard(er) to get devices for it. On a global scale, CDMA is 9% and shrinking.
HPSA/LTE is 16% and growing, GSM is at 74%.
AT&T is being themselves... late to the show