TiPb Jailbreak Genius
Jailbreak 4.1 Announced (10/10/10)
Announcement on Twitter
Things have progressed to the point where we don't expect anymore roadblocks. ETA for greenpois0n is 10/10/10 at 10:10:10AM
Greenpois0n will be here: greenpois0n
Update: 10:10:10AM GMT
Update: Just a reminder, greenpois0n is ONLY for 4th gen devices, so ipad, iP4, and iPT4G. Also if you want unlock you will have to restore to custom IPSW that has BB 01.59.00
Update: MuscleNerd has announced that thanks to help from Comex, Greenpois0n will be untethered. This is for 4.1/3.2.2 firmwares...
To be CLEAR, DO NOT upgrade to 4.1 yet if you ever want to have an unlocked phone, as it will render ultrasn0w useless and there might never be another unlock... There is a safe way to upgrade to 4.1 without upgrading your baseband by using TinyUmbrella. But Id suggest waiting until all the details regarding greenpois0n are released before doing anything more than saving your SHSH for 4.1. Remember if 4.1.1 is released tomorrow and you did not save your SHSH blobs you will be SOL...