Yesterday, iH8sn0w released Sn0wbreeze 2.3 b2, which is packed with lots of new features such as Multi-touch gestures support, MobileSubstrate fix etc. In Sn0wbreeze 2.3 b3, he has fixed iPod Touch 4G iBooty issues and has asked ultrasn0w unlockers to stay away from this tool.
Currently, Sn0wbreeze 2.3 is a tethered jailbreak tool for iOS 4.3 firmware and can only be used on Windows platform.
Download Sn0wbreeze 2.3 b3
[We've removed the downloadable links from our site due to policy violation issues. Sorry for the inconvenience.]
Some useful links: iOS 4.3 Unlock FAQs | iOS 4.3 Download | iTunes 10.2.1