We’ve known for quite some time that AT&T was planning to step up its 3G network in a big way over the coming months, but we didn’t exactly think it would be as big of an improvement as Engadget and Gizmodo are reporting. Apparently AT&T’s Operations CEO John Stankey was at a Reuters event in New York City and mentioned AT&T is going to more than double the speeds of its current 7.2Mbps 3G network by the time we’re all chucking out our 2010 calendars. AT&T’s made great strides in fixing its network in the past few months, and while we don’t expect it to be anything like T-Mobile’s 21Mbps network, but we’d be pretty happy if it meant that all of the 250 million people Stankey had a network with theoretical speeds hovering around 14.4Mbps.