How to Use greenpois0n to jailbreak an iPhone 4, iPod Touch or iPad on a Windows PC

In this video tutorial, we learn how to use the greenpois0n jailbreak tool to jailbreak an Apple mobile device running iOS 4.1 from a Microsoft Windows (or GNU/Linux) PC. For detailed, step-by-step instructions, and to get started jailbreaking your own iOS 4.1 iPhone, iPod Touch or iPad, watch this hacker's how-to.