The first public jailbreak of the iPhone OS 4.0 has been released. Along with redsn0w 0.9.5, developers of jailbroken apps will be able to prepare their apps for iPhone OS 4.0. If you’re not into developing apps for the iPhone, then you probably wouldn’t have much to do with the jailbreak at the moment. Surprisingly, the jailbreak currently only supports the iPhone 3G, and there isn’t any mention of the iPhone 3GS. Are you itching to get the iPhone OS 4.0 installed on your iPhone?