AT&T has reportedly sold out of its iPhone 3GS pre-orders. A new report indicates that AT&T retail stores have been instructed to tell all customers who pre-order the device on Saturday, June 13th or later that they will have to wait "7-10" days before they can fulfill the pre-order--which will be sometime after the official launch on June 19th: "Only preorders placed [on] Friday, June 12, 2009 or
