John Legere's T-Mobile USA is eating its rivals' lunches

T-Mobile USA is kicking off Uncarrier 7.0, and while John Legere might be proving to be a controversial chief exec with his regular rival-baiting, it seems his aggressive strategy is paying off. August was the biggest post-paid net-add growth in the history of the carrier, Legere revealed today; "Let me tell you the startling event that happened... it was August!" …