Tethered jailbreak for iOS 5.1 already out for non-A5 devices
Less than a day has elapsed since iOS 5.1 was unveiled alongside the iPad 3, and as usual, it has been freed from Apple’s clutches in no time. MuscleNerd, famed iOS hacker, has successfully jailbroken the new update and if you are okay with connecting your iDevice every time you reboot, you should definitely have a look at it.
As of now, only non-A5 devices, like the iPhone 4, iPad, 3rd and 4th gen iPod Touch, can make use of this exploit, assuming you have used the Redsn0w tool before. Head over to ThinkiOS to know more and try the jailbreak. If you are looking for an untethered solution for your iPhone 4s or the 3GS, you might have to hold off a little longer for it appear on the scene.