i0n1c has posted a video on YouTube which shows a jailbroken iPad running iOS 4.3 booting up—no strings attached. The Chronic Dev-Team is also working on an updated version of greenpois0n (independent from i0n1c) but no release date or ETA has been set for either.
The jailbreak is currently in alpha, due to a few yet-to-be-implemented kernel patches, so don’t expect a release just yet. And don’t nag for one!
iOS 4.3 *untethered* Alpha Jailbreak Video (sorry camera suxx) http://www.youtube.com/watch?v=71boAlfZIiU