When John Legere jointed T-Mobile, the company had lost two million customers and was eating some substantial losses. The party-crashing CEO, however, seems to have turned things around with the UnCarrier, Jump and Simple Choice programs. In the company's annual report, T-Mobile has announced that 2013 saw the network add a whopping 4.4 million customers across the year. For Q4, while the company added 1.6 million customers, it also marked a loss of $20 million -- so perhaps some of the money spent baiting rival networks should have stayed in the bank.