How to Jailbreak an iPhone 3GS or iPhone 4 from a Windows PC with limera1n
Jailbreak your iPhone 3GS or iPhone 4! With limera1n, it's a cinch! It's so easy, in fact, that this hacker's how-to can present a complete overview of the process in just three minutes. For all of the details, and to get started jailbreaking your own iPhone, iPod Touch or iPad, take a look.