We have been warning our users from a long time not to update their devices if they are worried about losing their untethered jailbreak.
A second tweet from MuscleNerd says that the only group of people who can downgrade from iOS 8.0 to lower will be the old-school iPad 2 users with 4.x or 5.x SHSH blobs, obviously using Redsn0w jailbreak tool.
So what do you think guys ?