ok so ive had my iPhone since launch and its been a sweet ass device. nothing wrong mechanically, other then a few slow freezes here and there with multitasking. anyways this has happen to me the last couple of days on safari. im surfing the net and then all of a sudden it just shuts down. it does it on certains sites, then on other sites it will stay up. by the way this is the only thing im doind, not listening to any music or talking to anyone. whats going on here? is there something wrong with my iPhone or maybe its just a flaw in the software? i don't want to take back iPhone, but its seriously starting to do it more and more. can anyone explain whats going on. thanks in advance.