I've been jailbreaking for years, but haven't had a need to unlock, so I haven't stayed current on that info. Forgive me for asking a few newb questions, but I'm trying to understand unlocking a little better as I may want to unlock before selling my iPhone 4 to upgrade in June. I have 3.10 firmware right now, which it seems doesn't have an unlock, correct? Is there one expected soon? In the future, how do I update and jailbreak without updating the firmware? I'm assuming this is the best method to maintain the ability to unlock until the unlock is updated? Thanks for any help you can give, guys.