Hey all, I have a friend interested in buying my iPhone 2G. I've read elsewhere that my friend can simply restore it as a new iPhone in order to erase all my personal data. Is this true ? Also, if the unit is unlocked and jailbreaked (with Pwnage), will he be able to unlock it again after restoring ? He just wants an unlocked cell and I am not sure this method will mess up with the phone... Thanks !