I was wondering 1) What is the best method to go about jailbreaking 4.0.1. Are there more than 1 major sites our there. I'm open to downgrading if needed. 2) Also is there a way to permanently mess up your iphone even after attempting to do a full restore? 3) After the jailbreak, would I lose something I had in the original non-jailbreaked Iphone? Apparently the usage info does not show anymore, is this true?