I have no experience with jailbreaking, and google has brought me straight here. I have a 2G iTouch with 2.2.1 firmware, MB model. Which is the best method to jailbreak my iTouch? I've heard about tethered vs untethered etc., not sure about the difference. Is it that one of them I cannot turn off the iTouch? What are the pros/cons or best choice? Also, after I jailbreak my iTouch, what then? What is this Cydia thing I see packaged with some of the jailbreaking software? Thanks in advance for any help offered, it is definitely appreciated!