Apple has announced that it will be opening its stores at 7:00 a.m. on Friday, an hour earlier than planned, for the launch of the iPhone 3G S. The company had originally planned to open its doors at 8:00 a.m., but may have changed its mind due to AT&T’s announcement that it would be opening its stores at 7:00 a.m. for pre-order customers, with normal sales beginning at 8:00.