Greenpoison Jailbreak is based on SHAtter exploit which itself is tethered, but Comex, a member of iPhone Dev, made it untethered to develop the upcoming Greenpoison jailbreak for iOS 4.1. However, Greenpoison to jailbreak iOS 4.2 or iOS 4.1.1 will be tethered jailbreak.
Here are the screenshots of Jailbreak Developer’s tweets telling the whole story.
Those reading between the lines: Yes SHAtter itself is tethered. @comex came up with a way to untether it on 4.1/3.2.2
Yes, that means you need to back up SHSH or you will lose untethered when 4.1.1 comes out, kthx.
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