Ok, So I am a current AT&T customer and I am looking to get an iPhone to try and if I don't like it I want to just return it and go back to my blackberry curve. So If i go to the store today and buy one, it extends my contract 2 years. Do I have 30 days or 14 days to return, and is there a restocking fee? Also, if I return it is my contract still extended or does it backtrack to how it was prior to the purchase? My getting one totally depends on this, so I just need to go before, I was planning on heading over there later this afternoon. Thanks!