Dev-Team’s PwnageTool 3.1.4 works only on Mac OS X and not in Windows. But Geohot’s Blackra1n is just the opposite. It works on Windows and not in Mac OS X.
But now Blackra1n lovers has got what they wanted. Blackra1n’s Mac OS X version has been released. It helps the users to jailbreak iPhone and iPod Touch 3.1.2 Firmware in Mac OS X. But you should use this tool only if you don’t care about unlocking your iPhone.