The Dev team has released an update version of the Redsn0w and PwnageTool to make possible the jailbreak iOS 4.3.3 untethered. The release also mentioned that those with the unlock done with ultrasn0w should refrain from using Redsn0w. Also they should only use the custom IPSW to update to the latest version of the iOS..
Today’s PwnageTool and redsn0w incorporate @i0n1c’s port to 4.3.3 (it’s ironic that such a long-lasting untether doesn’t even have an official name!). It also of course uses geohot’s limera1n bootrom exploit to inject the jailbreak.
Some other mentions to note here are the update to the ultrasn0w to make the tool compatible with the iOS 4.3.3, but it does not include support for the new baseband. Also the Redsn0w now enables multitasking gestures on your iOS device, though I personally think it would only be more useful on the iPads. As for jailbreaking the iPad 2, the method is still under under development and hopefully the challenge between P0sixninja and Geohot will bring the method out for us soon enough.
You can download redsn0w 0.9.6rc15:
And the PwnageTool Official BitTorrent Release here: PwnageTool_4.3.3.dmg.6370757.TPB.torrent