A few days back, George Hotz revealed a magnificent jailbreak tool for iPhone OS 3.1.2called blackra1n. Initially the release was targeted for Windows platform. Later on, the iPhone OS 3.1.2 jailbreak tool was released for the Mac platform as well. While the tool did its jailbreak function properly and quickly (taking only 30 seconds), there were some issues related to iPod Touch 2G MC support as well as 3G and 3Gs connectivity. George Hotz has tweeted that he will be releasing blackra1n RC2 which will fix all of the above mentioned issues.

blackra1nRC2