I'm trying to convince my dad to let me jailbreak my 3g iPod Touch. I've done my research and consider myself fairly educated, at least about the basics, but I couldn't find one thing. On this very forum, I've heard people say "Oh, tethered jailbreak sucks" (obviously a paraphrase) and get the response "Wait for untethered, then." Does using blackra1n prevent you from being able to use greenpois0n in the future, or are you just saying "Shut up, the solution's on the way."? I'm 99% sure it's the second, but 99% won't cut it for my dad. Thanks!