Dev-team has finally released the redsn0w 0.9.6 beta1, which jailbreaks iOS 4.1. Currently this release only jailbreaks iPhone 3G and iPod Touch 2G. It uses the same pwnage2 DFU-mode exploit that they’ve been using since the 2.x days. It does not include the SHAtter exploitdeveloped by pod2g. Nothing new is revealed to Apple with this jailbreak.
IF YOU USE THE ULTRASN0W UNLOCK, PLEASE WAIT FOR PWNAGETOOL TO SUPPORT 4.1. DO NOT USE REDSN0W. That’s because to use redsn0w at 4.1, you need to already have updated to official 4.1 from Apple. If you do that, you lose the ultrasn0w unlock (possibly forever).
The Windows version is not out yet, only MAC OS X x86 version is available for now.
<h3>Download Redsnow 0.9.6</h3>
redsn0w 0.9.6 beta1 can be downloaded from here