Hello all, I have searched online for an answer but cannot find a thread that is newer than July. When iOS4 and the iPhone 4 first came out there was the claim from apple that if you jailbreak the iPhone 4 / iOS4, even if you revert it to factory settings, apple will still be able to tell and not give you a replacement because it will void your warranty. Some speculated because it puts an imprint on the NAND ram (or something like that). Where does that statement stand right now? If you have an iPhone 4, jailbroke it, then reverted it back to factory settings, did you get a replacement? That is the only thing stopping me right now from jailbreaking. I just don't want to void my warranty, that's all..... Thanks!