The iPhone 4S officially went on sale in the US yesterday, and unsurprisingly, it has provided record-setting sales for at least two of the three major U.S carriers that offer the device.
AT&T on Friday confirmed to BGR in an email that it has activated a record number of iPhones and is on track to double its previous record of activations in a single day.
Sprint, which didn’t start carrying the iPhone until this month, reported its best ever day of sales in retail, web, and telesales for a device family in Sprint history, thanks to the launch of the new iPhone 4S and iPhone 4...