iPhone Accounted for 80 Percent of AT&T Smartphone Sales Last Quarter

In AT&T's best quarterly smartphone performance ever, the carrier saw 9.4 million smartphone sales in Q4 2011. A remarkable 7.6 million, or more than 80 percent, of these sales were iPhones.

Source: http://www.wired.com/gadgetlab/2012/01/iphone-att-q4-sales/

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