By the end of this year subscribers in those six cities will have access to a peak speed of 7.2Mb/s downlink -- although, it's only a theoretical figure that customers are unlikely to experience in the real world. AT&T hopes to upgrade some 90% of its 3G network by the end of 2011, after which the carrier will begin its transition to 4G Long Term Evolution (LTE) technology.
Perhaps a smooth transition to a quicker network will boost AT&T's crummy customer approval ratings. While I have few complains after using the carrier for nearly two years, according to a recent Gartner Research study, the firm received the most complaints about AT&T's network. Gartner also noted that AT&T's actual mobile network averages are between 300Kb/s and 700Kb/s lower than expected.