Despite the high expectation that the iPhone 4 jailbreak and unlock might be released today, MuscleNerd confirmed that it will not. Apparently there are issues with important jailbreak apps such as FaceTime that need to be taken care of before the release. Like MuscleNerd says, there is no point releasing a jailbreak and unlock if it’s not stable.

The Dev Team said last week they will release both the jailbreak and unlock for iOS 4 at the same time, so even though ultrasn0w is ready for release, the Team now has to make sure the jailbreak is bug free before making it available to the public.