AT&T this morning provided more definite plans for its promised rollout of 7.2Mbps 3G on its network. Only six cities will receive the upgraded HSPA-based network this year and will focus mostly on the southern US: Charlotte, Chicago, Dallas, Houston, Los Angeles and Miami will all see the doubled download speeds at first. Expansion in 2010 will have 25 of the 30 largest markets receive the update, while about 90 percent of AT&T's entire service will have been upgraded in 2011.
