AT&T: churn unaffected after rivals got the iPhone

AT&T's customers have remained loyal despite losing its exclusivity for selling the iPhone.

"Churn has not moved at all," said Glen Lurie, president of emerging devices for AT&T. Lurie said the carrier's relationship with Apple has been positive, and they've had record-breaking sales of the latest iPhone 4S. He added that chief information officers have also warmed to Apple's operating system, iOS, in the work place over the past two to three years.