Just need some advice here! I'm based in the UK and have got the iPhone 4 since the initial release. It's the unlocked version bought from the Apple store. I ignored the 4.0.2 jailbreak and went straight for 4.1 as I wasn't interested in jailbreaking. However, since the release of limera1n (and greenpois0n) lately; I would love to give it a try! I'm a techie person already, but just want to clarify a few things. I'm on 4.1 and baseband 02.10.04. Is it okay to jailbreak and restore as many times as I like without ruining thew SIM unlock status of the phone? Is there any point protecting the baseband or getting hold of the SHSHs for future? Also, restoring to the factory firmware; will the backup of my messages etc (taken in iTunes) get downloaded straight back if I decide to remove the jailbreak?