Pre-sales of Apple’s new iPhone 4S have sold out at all three wireless carriers in the United States, Bloomberg reported on Thursday. The report cites information on each carrier’s website, with AT&T, Verizon Wireless and Sprint each showing that launch day availability of the iPhone 4S is no longer possible for new pre-orders. Delivery estimates on AT&T’s website now sit at three to four weeks while Verizon Wireless shows a delivery date of October 28th for new pre-orders. Sprint’s website lists the 16GB iPhone 4S as sold out while pre-orders are still being taken for the 32GB and 64GB models, though launch-day fulfillment will not be possible according to Bloomberg. Quite a disappointment indeed.