iPhone 4 running on iOS 4.3 GM can be jailbroken. After the release of The iOS 4.3 GM build, @jcf_dev and @msft_guy have been able to Jailbreak iPhone 4 on iOS 4.3 GM. You could use iOS 4.3 GM IPSW to restore it. The above jailbreak is tethered jailbreak. Do take backup before proceeding further [...]

iOS 4.3 GM ( Gold Master ) was released by Apple. It is build for iPhone, iPod Touch and iPad. It is the final beta build as the iOS 4.3 will be out to the public to download on March 11th and available for Download.

iPad 2 was recently released by Apple. It will run on a new iOS 4.3. The next big question that arises on iPad users mind is Can there be Jailbreak for iPad 2 running on iOS 4.3 ?.

iTunes 10.2 was released by Apple. It was released just after the launch of iPad 2 and iOS 4.3. The release is mainly due to the launch of Apple IPad 2 which runs on iOS 4.3 which would require iTunes 10.2.

TinyUmbrella 4.21.13 was released by Notcom, developer of TinyUmbrella. The new version of TinyUmbrella 4.21.13 includes the support of iOS 4.3 GM. This can be used to save iOS 4.3 GM SHSH blobs. It also uses your proxy settings while running the TinyUmbrella loader. According to Notcom, from his blog