So itunes is telling me there is an update to 4.01 or 4.1. Either way i am unlocked and jailbroken, can i still update or will it lock it back to att? Sorry for the noob question. First iphone.
However, you can go to jailbreakme.com and jailbreak it under the new OS update. But it'll still be locked for now. Updates coming soon on that subject.
You don't want to go to 4.0 or 4.0.1 on a 3G anyway. It will slow it down considerably and you'll end up wanting to revert back to 3.1.3. Besides, I don't see why you'd really want to update seeing as the offerings of Cydia are currently better than what is provided on the newer iOS 4.