I bought my iphone 3g 5 months ago and it stopped turning on this friday. I remembered I went to turn it off and the next day I tried to turn it on it would not do anything. I attempted to charge it and it did not respond. Would I be able to go to an Apple Store and get it replaced? I checked my warranty and it is still active till August 2009. Also, I am wondering what do I need to bring with me to the visit?