AT&T recently announced it activated 5.2 million iPhones in the months of June through August, a record for the Apple device, but those numbers may quickly change as AT&T loses its iPhone exclusivity to Verizon early next year.
Analysts estimate between one quarter to nearly half of all AT&T's customers may defect in January when the iPhone becomes available on Verizon. Worse, the iPhone market is now saturated and isn't going to be growing like it used to be. Verizon selling the iPad next week could also keep defection high.
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