As reported a few days ago the Chronic Dev Team was set to release a new jailbreak labled ‘GreenPois0n’ for iOS 4.1 on Sunday 10/10/2010 at 10:10am. Shortly after the announcement iPhone Hacker Geohot returned to the jaibreaking scene with a vengeance, however, stating that he will release his own jailbreak labeled ‘LimeRa1n’ the following day.
It was quickly confirmed that Geohot’s jailbreak would use a different bootrom exploit from the Chronic Dev Team, hence exposing two exploits to Apple at the same time, possible narrowing down future jailbreaking efforts for the next generation of iDevices. Bootrom exploits are harder for Apple to patch than userland exploits, generally requiring updated hardware, hence “burning” two at nearly the same time may hurt the jailbreak community in the long run.
After Geohot’s announcement the Chronic Dev Team desperately tried to convince the independent iPhone hacker to postpone his release until after the next generation of iDevices is released in order to save the exploit for future use. Geohot, however, decided to do the exact opposite and posted ‘LimeRa1n’ one day before the scheduled ‘GreenPois0n’ release.
‘LimeRa1n’ will work on iPhone 3GS, iPod Touch 3G, iPad, iPhone 4, and iPod Touch 4G on iOS 4.0, 4.1 and beyond. The jailbreak currently does not work on iPhone 3GS with new bootrom and is only available on windows for the time being.
You can download ‘LimeRa1n’ at http://limera1n.com/
We strongly recommend against using ‘LimeRa1n’ at the moment as Geohot is known for buggy version 1.0 software which is updated frequently during the following hours and days.
In addition, Chronic Dev Team seems to be taking the high road by saving their own exploit for the next generation of iDevices and is planning to incorporate Geohot’s exploit into ‘GreenPois0n’ instead.
If you don’t need to jailbreak right away, we strongly recommend for you to wait a few days until the dust settles and you can choose the safest method to jailbreak your device.
We will update this story as it develops.