There are reports that the latest version of iPhone software will break the phone's WiFi and Bluetooth, although not right away:
http://techland.time.com/2013/06/06...-out-wi-fi-bluetooth-and-cost-you-200-to-fix/
http://techland.time.com/2013/06/06...-out-wi-fi-bluetooth-and-cost-you-200-to-fix/