With T-Mobile now behind it as the nation's third largest carrier, AT&T has updated its wireless data plans (below) to give you a bit more data for a bit less money. Unsurprisingly, the benefits get juicier if you spend more -- there's 5GB more data if you spend $100 for 15GB, but the 5GB plan is just a dollar per gigabyte less than the previous $70/6GB one. In total you'll now spend $75 per month for 5GB including the access charge, compared to $70 with T-Mobile. That might stop some folks from straying to Legere's flashy network, especially given AT&T's overall superior coverage.