AT&T lost $3.9 billion in Q4 2012, earned $7.3 billion profit for the year

American telecommunications giant AT&T announced its Q4 2012 financial results this afternoon, which reflect $3.9 billion in losses for Ma Bell's final fiscal quarter of last year. However, the company's also posting "record smartphone sales" of 10.2 million last quarter -- "the most by any US carrier," it claims. As it's Q4, the results for the full year are also in;...