Since last week I told you that MuscleNerd has everything it needs to release a solution that will allow you to downgrade the baseband 06.15.00 and on Sunday you might have that solution available. In a tweet published a few minutes ago, MuscleNerd stated that he plans to release the solution on Sunday, if no bugs are discovered in his testing process. The release date can change at any time, so don't really put all your hopes on a release that will take place then.
Using this solution you will be able to downgrade the 06.15.00 baseband to the 05.13.x version which can be decoded using the ultrasn0w software. The downgrade will also bring back the functionality of the GPS, so you won't have problems from this point of view either. I will provide you with more information as it becomes available. This solution can ONLY be used on iPhone 3G and iPhone 3GS.
