Bravo! Dev-team has done it again. This time again, the jailbreak demo came within 24 hours of the release of iPhone OS 4. Earlier it was Muscle Nerd of the infamous Dev-Team who ported Spirit jailbreak to iPad and then we also had a video showing Cydia app store running on jailbroken iPad and now it’s this guy showing Jailbroken iPhone OS 4.0. The tool for Jailbreaking is not available as yet and there’s no ETA announced as yet but here’s the video showing the Jailbroken iPhone OS 4.0:

Important

Now you can do untethered Jailbreak of your iPhone 3G/3Gs running latest firmware 3.1.3 with "Spirit".

Step by Step iPhone 2G/3G/3Gs Firmware 3.1.3 Jailbreak Guide Using Spirit