Chronic Dev Team Releases greenpois0n, Untethered Jailbreak for 4.2.1
http://modmyi.com/images/Messany/green.jpg
The jailbreak community is buzzing and rejoicing tonight as the culmination of weeks of waiting is finally here. Earlier this evening, the Chronic Dev Team released the latest version of greenpois0n. What we have here is a nifty little conduit to free your iDevice running 4.2.1.
Although MMi will have more insight and coverage of the release of the hours to come, in a nutshell, what we have with greenpois0n is a program that enables you to perform an untethered jailbreak. You can simply reboot without any cumbersome need to re-jailbreak. So far, however, we understand that it's only available for Mac.
It should also be noted that caution should be exercised in rushing toward greenpois0n, as the build is believed to have been hurriedly put together. Consequently, there's only a small number of people who can presently report back on their experience with the release. So, by all accounts, please stay tuned.
Greenpois0n
Edit Poseidon: For anyone who gets stuck on "Initializing" you will need to hard reset your phone (hold home + power). Put your phone back into DFU mode but do not let go of the home button... Run Green Pois0n... release home button when you see code running down the screen.
*I will not post links to the Green Poison Jailbreak. Please use at your own risk. There's a lot of people complaining of a lot of glitches when jailbreaking their 4.2.1 Iphone/Ipad. I would wait until all the glitches are worked out. - zeroGsti*