It may be real! Geohot may surprise us (again!) with a new unlock solution for iOS 4.1 on iPhone 4, iPhone 3GS and iPhone 3G using Limesn0w. The video below shows iPhone 3GS running iOS 4.1 on baseband 05.15.01 unlocked using Limesn0w solution via Limera1n jailbreak which was released two days ago. It would be a real surprise.