Redsn0w Untethered iOS 4.3.1 Jailbreak (Redsn0w - PwnageTool) to be Released within Few Hours [Confirmed].
Don't just take my word for it , do a google search .
Source: redsn0w facebook page ( http://www.facebook.com/Redsn0wUS?ref=ts ) sorry mods for the link ... But i just had to post this , I'm too excited
Sent from my Blackberry.....nahhh...just kidding !