AT&T US carrier's internal sales system is asking staff to tell customers that any iPhone 3G S pre-orders made on Saturday the 13th or later won't ship on launch and instead will reach retail locations between 7 and 14 days after the order is made, overshooting the release date. If you do pre-order a 3G S, you'll receive an email once it's back in stock, saving you from having to stand in line.

Source:→ AppleInsider