A day after Apple officially unveiled the next version of its mobile OS, a member of The iPhone Dev Team that goes by the name "MuscleNerd" announced that he has already jailbroken iOS 5According to his Twitter announcement, MuscleNerd used Limera1n get a tethered jailbreak—meaning you would need to keep your iPhone plugged into a computer each time you boot it up. Seeing as how consumers won't get their hands on iOS 5 until this fall, this jailbreak is pretty useless. However, MuscleNerd says it should work with the final version, so at least we know it'll be ready when the time comes. 

[via BGR]