***FOR ALL THOSE STILL ON TETHERED JB 5.0.1-
If you are currently operating an A4 device which has a tethered jailbreak using Redsn0w, Ac1dSn0w or Sn0wbreeze then you can simply launch Cydia from your Springboard and download a package named ‘Corona’ which will provide you with an untethered jailbreak."
THIS MEANS YOU DO NOT HAVE TO RE-JAILBREAK IF YOU ARE ON 5.0.1 TETHERED
(thanks redmond pie! http://www.redmondpie.com/jailbreak-5.0.1-untethered-on-iphone-ipad-ipod-touch-a4-devices-now-using-redsn0w-0.9.10b1-corona/ ) ***
**** UPDATE!!!! AN UNTETHERED JAILBREAK HAS BEEN RELEASED. I WILL TRY TO GET INFO UP SOON!! SO UNTIL THAT IS UP, PLEASE DISREGARD THIS INSTRUCTABLE! (12/28/11) ****
***UPDATE #2. IPAD 2 AND IPHONE 4S JAILBREAK RELEASED. MORE INFO HERE! http://www.engadget.com/2012/01/20/absinthe-a5-jailbreak-released-for-iphone-4s-hacker-dream-team/ (1/21/12) ***
This hack will NOT work with an iPhone 4S OR for an iPad 2. Currently the jailbreak teams are working on a release. Supported devices include the iPad 1, iPhone 3GS, iPhone 4, iPod touch 4, and iPod touch 3. Also: Note that if you are using ultrasn0w or are looking to unlock your SIM, I would NOT recommend a jailbreak, I am not sure what it will do to your device. If you want more information, I am afraid you are going to have to find it somewhere else :-(
Step 1: Safety and Warnings
This jailbreak is (I think) in BETA stage.
ALSO know that this hack WILL VOID your warranty with Apple. Please use this if you want to check your support coverage (or ETA until warranty expires)
This is also a TETHERED hack. A description from wikipedia- ". A tethered jailbreak requires that the device be connected to a computer each time it needs to be booted; an untethered jailbreak allows the device to be powered without computer assistance. " If you are using an iPhone 3GS, however, an UNTETHERED jailbreak is available.
There is a Cydia app that allows a "semi-tethered" jailbreak for iOS5, allowing your ipod to reboot without a computer, but all jailbroken apps and tweaks will NOT function if phone is restarted.
ALSO from wikipedia, "Under the Digital Millennium Copyright Act, jailbreaking Apple devices is legal in the United States, although Apple has announced that the practice "can void the warranty"."
Also, just to put this out there: This instructable is meant for educational purposes, not for illegal activities. Please do not use these hacks for illegal purposes.