Redsn0w 0.9.8b1 is released and available to download for Windows or Mac. Using Redsn0w 0.9.8b1 you can jailbreak iOS 5 Beta on iPhone 4, 3GS, iPod Touch 4G, 3G and iPad Gen1. See the download links below.
Redsn0w 0.9.8b1 version is for developers, those who want to jailbreak iOS 5 Beta apps.
Jailbreak iOS 5 with Redsn0w 0.9.8b1 is tethered
Baseband will be upgraded so, stay away if you want to unlock your device as well
Download Redsn0w 0.9.8b1 for Windows
Download Redsn0w 0.9.8b1 for Mac