After iPhone 5, iOS makes gains at AT&T and VerizonSome of Apple's gain appears to be RIM's loss as Blackberry sales dropped off at both carriers. The remaining pickup by Apple may have come from new customers, or from upgrades from Android devices, which lost share year over year between mid-October and late November.
http://feedproxy.google.com/~r/TheAppleBlog/~3/3_85QQHqsjU/story01.htm
