Three updates, and three jailbreaks using the same exploit; that's got to be some sort of record.
For those of you interested in preserving your baseband with this latest jailbreak, you're obviously going to want to stay away from RedSn0w.
PwnageTool is the jailbreak tool to use when you're interested in creating custom firmware, and most importantly, when you need to preserve an unlockable baseband. Even if your baseband isn't unlockable, you may want to preserve your baseband in case a future unlock is found.
The good news is, the choice is yours. Without further explaining, here is the tutorial that will show you how to jailbreak your iPhone running iOS 4.3.3 and preserve your baseband with PwnageTool...