Chronic Dev Team unleashes greenpois0n, untethered jailbreak for 4.2.1

Engadget: It's finally here, folks. The Chronic Dev Team has put out the latest version of greenpois0n that allows you to free your iDevice running 4.2.1. What's different about this jailbreak? Glad you asked. This time 'round, the program will let you perform an untethered jailbreak -- you can finally reboot the device without having to re-jailbreak.

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