AT&T's balance sheet just keeps looking happier and happier every quarter. In spite of the company's somewhat questionable hardware choices -- such as picking the ugly option from both Samsung's and LG's Windows Phone 7 platters -- it now proudly boasts a total of 92.8 million active wireless service lines. This comes off the back of a 2.6 million net subscriber gain over the third quarter of 2010, a record for this period of the year. Churn, or the rate at which people left AT&T, was
