Hi all, My wife surprised me with an iPhone last Friday and I've been having a blast playing around with it. I have a question or two though. First, my phone's currently running 2.2.1. If I don't use MMS or any other such functions, is it really necessary for me to update? Will it do anything else to the phone that would be beneficial, like making the battery last longer or any such thing? I have an 8Gb 3G if it matters. Second, I've lots of people talking about jailbreaking. Does jailbreaking lead to crashes on the iPhone? A friend of mine has a jailbroken iPhone and he's just completely stopped using it as it constantly crashes. Thanks for any advice guys. I really love this phone and don't want to do anything to it that will screw it up!