Apple has reduced the return window for the iPhone from 30 days to 14 days, as noted by “electronista” (http://tinyurl.com/nr9etxm).

“For iPhone returns, you may return your undamaged iPhone with its included accessories within 14 days of purchase for a full refund,” according to Apple.
The change brings the company’s iPhone policies in line with its other products, as well as the iPhone policies of US carriers. You can read more at http://tinyurl.com/ol4kn6q .