First off, I want to start by saying I love my iphone the way it is and never thought I would even consider jailbraking my iphone. But just recently I have started considering doing it. I am looking for more from my iphone and some of the things you can do with a jailbroken iphone seem real cool. My questions are, if I have problems, or don't feel comfortable with it jailbroken, can I just simply restore it? When new updates come out from Apple, is there anything special you have to do before downloading them?