Hello, would it be best to jailbreak at 2.2.1, or upgrade to 3.1.2? I read that if I use Itunes to upgrade to 3.1.3 and jailbreak it later, it'll be tethered? Is that true? I have an Ipod Touch 2g MB. I was thinking of using felixbruns to download 3.1.2 for free. It seems that if I BUY an upgrade from Itunes, it only does 3.1.3 ugprades? I don't think it lets you upgrade to a lower 3.x. Correct? Thanks!