I would really appreciate it if someone could set me straight on this point. I have an original Day 1 iPhone. I'm an AT&T customer and have no desire to unlock . . . I'm only interested in jailbreaking. Last week, I ended up going from a jailbroken 1.1.2 to a non-jailbroken 1.1.3 (don't ask . . . had issues). Now I want to jailbreak 1.1.3. All of the instructions have the user to a baseband downgrade as part of the process. My question is whether this is necessary for someone like me who has no interest in unlocking? I understand that moving back to 1.1.1 or 1.1.2 will cause the phone to no longer work, but if I then go back to 1.1.3 using either devteam or Nate, won't the phone work again? Thanks in advance.