blackra1n 3.1.3 and under teatherd backra1n.com.
jailbreakme.com 4.0.1 and under unteatherd.
redsn0w 3.1.3 and under redsn0w.com unthearerd.
blacksnow 3.1.3 and under blacksn0w.com unteatherd.
4.0.2 and under jailbreak/unlock windows http://www.megaupload.com/?d=RB65SZQN mac http://www.megaupload.com/?d=YUXMZUT6 untheatherd.
spirit 4.0.1 and under spiritjb.com unteatherd.