The iPhone Dev team had earlier announced that they will hold off on releasing their jailbreak for iPhone 3GS on OS 3.0 as they expect Apple to close the hole in their upcoming iPhone OS 3.1. Here is our step by step guide on how to jailbreak your iPhone 3GS using Redsn0w for Mac users. Windows users can checkout this guide. Before we start some important points: This one is only for iPhone 3GS users, if you are an iPhone...