iOS 4

Supported Devices for iOS 4

iPhone 3GS, iPhone 4, iPod Touch (3rd and 4th generation), iPad (original) and iPad 2

Visit Cydia to jailbreak iOS4 devices with Jail Break Me 3.0

Jail Break Me 3.0

Below is a video showing you how to use Jailbreakme 3.0 jailbreak iOS4 devices