umts was in place already from ATT back in the 2001 rollout...during tower integration to the gold standard cingular is upgrading existing umts towers to hsdpa, and at the same time expanding the hsdpa network. so you are right, they are dumping money into hsdpa expansion, but at the same time the umts stuff was already there for the most part coming from attws.
also, dont think of an edge tower as also a umts tower or hsdpa tower.... if you look at a map of tower integration there is seperate cell sites for data and voice, but also piggybacked towers..so both worlds....
all of this is considered in the works, which means there are goals and goals slip...which means schedules slip...do i think its lofty that hsdpa will be in place by end of this year? hmm..not really....there is markets coming online every month now....its something to look forward too..... especially with verizonz REV A coming out.....
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