Steps to Jailbreak iOS 4.1 Beta with Redsn0w [Guide]
The newly released iOS 4.1 is jailbreakable using Redsn0w 0.9.5b5. All you need is the latest iOS 4.1 firmware for iPhone 3G or iPod touch 2G (non-MC Models) and you can jailbreak it using Redsn0w on Windows and Mac.