Many iPad 2 owners have waited almost a full year for this moment, and it has finally come. Both the iPad 2 and iPhone 4S now have their own bona fide jailbreak tool in Absinthe A5. To be clear, Absinthe A5 is an untethered jailbreak method - this is the one you want, otherwise you have to have your iOS device connected to your Mac or PC with a cable whenever it boots up. This has no such requirement.
iOS hacker p0sixninja says that the jailbreak software works for A5 devices that are running iOS 5.0 and iOS 5.0.1. If you've updated to the iOS 5.1 beta, then you're out of luck if you wanna jailbreak. Your best bet might be to downgrade. To get started, you'll need to download the latest version of greenpois0n, and it currently only works on a Mac (Windows is "coming soon".) The specific builds that are supported are iPhone 4S with iOS 5.0 build 9A334 and iOS 5.0.1 builds 9A405 and 9A406, as well as iPad 2 running iOS 5.0.1 build 9A405.
After a short two-day delay, the GreenPois0n iOS 4.1 jailbreak tool is now available for download. Unfortunately, like Limera1n before it, it’s a Windows-only tool for now, and the OS X version should be available shortly. We used Limera1n to jailbreak an iPhone 4 a couple of days ago, and while it’s nice to have tools like SBSettings, and BiteSMS back in our lives, we’ve found that quite a few of the jailbreak apps that we know and love are in beta, pending a full release that is compatible with iOS 4.1. Still, we’re definitely happy to have our phones functioning the way we want them to, rather than the way Apple wants them to. GreenPois0n is free, and supports iPhone 4, iPad, iPhone 3GS, and the third- and fourth-gen iPod touch.
Read More | Chronic Dev
If you’ve got an iPhone, iPad, or iPod touch running iOS 4.1 and you’ve been itching to get that jailbreak goodness back, it looks like you’ll have your wish in under three days. The Chronic Dev Team has just confirmed that their SHAtter-based GreenPois0n jailbreak tool, which is compatible with all iOS devices, will be released to the world on October 10, 2010 at 10:10:10AM GMT—see, that’s 10/10/10 10:10:10.
GreenPois0n is based on a low-level exploit which can be used to jailbreak all currently available iOS devices permanently. In order for Apple to block GreenPois0n, they’d only be able to do it on new, revised hardware.