Just days ago, iPhone hacker extraordinaire geohot released blackra1n, a tool for jailbreaking the iPod Touches and iPhones (including the 3GS) running OS 3.1.2. Alas, it was only available for Windows users.

Just two days later, geohot and the rest of the endlessly impressive iPhone hacking community have it all up and running on OS X. As always, tread carefully – but if you’re ready to make the jump, you can find both the Mac and Windows versions here.