The screenshot above accompanied a Twitter post by iPhone hacker "iH8sn0w:"
Yay! iPad 4.2 b3 jailbroken. — http://moby.to/4ttxrx // Weird that MobileTerminal runs in simulator. :/
Currently, iOS 4.2 is scheduled for a general release sometime in November. Since there's been no word of a "beta 4" pre-release, it looks like the hacker community has made a pre-emptive strike against the House of Jobs.
Expect iPad owners to be dancing in the street shortly…