T-Mobile says its UnCarrier changes are starting to reap benefits, as it picked up 1.1 million new customers in Q2 2013. It also managed to keep postpaid churn (turnover of customers on contract) its lowest level ever at 1.58 percent. The carrier said its new Jump program has already started to bear fruit, even though the twice-yearly upgrade program only launched a month ago or so. Though it only started selling
