I know there are many threads about jailbreaking, and I didn't find this with a quick search. I Jailbroke my phone a few days ago when it was running 1.1.1 OTB. To my surprise, after upgrading to 1.1.2, installer.app and all of my downloaded apps vanished. My question is, will downgrading to 1.1.1, jailbreaking and running the oktoprep software, then upgrading to 1.1.2 cause any irreversible damage? I.e. Will I be able to restore the phone to its factory state so future updates can be installed? Or is the firmware permanently damaged by jailbreaking 1.1.2 so that Apple can see it was jailbroken? Thanks.