I have a droid 2 which I rooted using Z4. I haven't installed a new rom or anything drastic, but I have used titanium backup to delete all the excess software I didn't want, including the default Home App. I know that when the update comes out, I need to unroot, but do I also have to reinstall all the bloatware before I update? If so, how would one do that? I've heard something about SBF, not sure exactly if its necessary.