The only device which is yet to be jailbroken is iPad 2 though Comex and Chronic dev team has said to be working on iPad 2 jailbreak the success is yet to be tested. Comex has made good progress on iPad 2 jailbreak which is userland based jailbreak and is supposed to be released very soon. The delay in jailbreak is because of unionfs which comex wanted to get on Jailbreak Me 3.0 to make jailbreak process faster.
The Jailbreak Me 3.0 has reached beta stage and being tested privately but its looks Jailbreak Me 3.0 has been leaked in wild thanks to those testers. The video uploaded on Youtube demonstrating iPad 2 jailbreak on iOS 4.3 using Jailbreak Me 3.0.
The uploader has also provided links to PDF file which is used in Jailbreak Me 3.0 to jailbreak iPad 2 iOS 4.3. At any cost don’t attempt to jailbreak iPad 2 with this beta Jailbreak Me 3.0. You may end up with bricked iPad 2 as it is still in beta stage.
We are hoping that Comex will soon release final version Jailbreak Me 3.0.