It's also on Apple's and AT&T's site if you dig deep enough: AT&T iPhone 3G Policy Memo to Retail Managers « MikeKochansky.com
Originally Posted by pilot1
It is different for the iPhone. Ther is only 14 days to return it at both AT&T stores and Apple stores. There is also a 10% restocking fee. This is an agreement that Apple insisted upon. If you have a defective phome you still have a 30 day exchange period for the same phone. Hope this helps.