Yes, I did forget to add that there's a package you can install via Cydia (after Jailbreak w/ redsn0w) that makes it a Semi-Tethered Jailbreak. Also, the un-Tethered Jailbreak that Unleashed is refering to will be capable of Jailbreaking over the existing Tethered Jailbreak.there is also a semi tethered jailbreak for ios 5 and a un tethered one on its way for ios 5 so if you can hold out then it might be worth it