Sprint on Wednesday revealed a huge upswing in subscriber additions through its inaugural quarter of iPhone sales. It sold 1.8 million iPhones during the fall, 40 percent of which went to people new to the network. Apple's device was almost single-handedly responsible for returning Sprint to performance it hasn't seen in years: at 1.6 million net new subscribers, it saw the most adds since 2005 and had set a new high for its customer base at 55 million.
