Apple has already pushed back shipping estimates for iPhone 5 pre-orders, just hours after the phone was added to Apple’s online store. The iPhone page on Apple’s online store promises a release date of Sept. 21 in retail stores, but the pre-order page for the phone says all three models–the 16GB, the 32GB and the 64GB–will be shipped in two weeks if ordered online today. Apple had previously announced the iPhone 5 would be available online and in retail stores on Sept. 21, and customers could pre-order the phone online starting on Sept. 14. Read the full story at USA Today.