On the data side, AT&T crushed the competition, with maximum iPhone 4S download speeds of 6,047Kbps and a mean speed of 3,210Kbps. Verizon Wireless’ network found itself in a distant No.

Sprint and Verizon Wireless will both offer iPhone 4S handsets that will be GSM-unlocked, a new report states. Macworld on Tuesday confirmed that iPhone 4S units sold by Sprint will be GSM ...