Sn0wbreeze is an alternative to redsn0w for jailbreaking your iDevice.
As we reported yesterday, the Dev-Team rolled out the updated redsn0w 0.9.9b8
which adds support for iOS 5.0.1 Beta. iOS 5.0.1 Beta was released
fixing numerous security bugs and the iPhone 4S battery problem in iOS 5. Redsn0w 0.9.9b8 is available for both Windows and Mac users and can be used to deliver a tethered
jailbreak to the user. iOS 5 currently has a Semi-tether