AT&T this morning offered up some earnings tidbits, and there's some good news in there for the iPhone-wielding mobile network. In its best-ever second quarter for smartphone sales, the company moved more than 5.6 million of the devices. The Former Mrs. Bell also revealed that it is "confident" that, much to the chagrin of Sprint and others, its planned purchase of T-Mobile is set to be completed by the first quarter of 2012. AT&T will be offering up more financial details in an earnings call later today, including, no doubt, the much-rumored plans for magenta carpeting.