AT&T has finished a software upgrade of all of its 3G cell sites across the US, according to company representatives. The deployment is said to have been an accelerated one, designed mainly to improve the "consistency" of data access for subscribers. While technically adding support for 7.2Mbps 3G, beyond the current 3.6Mbps, AT&T must also complete a series of backhaul hardware upgrades before people see genuinely faster speeds.
