The iPhone 4S which was made available for pre-ordering online on October 7th has sold out of its U.S pre-order stock selling more than 200,000 devices in the first 12 hours ( according to AT&T ) with the shipments coming in from 14th October onwards. This is a surprising turn of events, what with reviewers all over speaking about the device with a critical frown on their face. It seems the consumer is highly impressed with the iPhone 4S.