UPDATE: Attention jailbreakers! Go ahead and jailbreak. Follow our guides here for both Redsnow and Snowbreeze.
Jailbreakers beware! iOS 5 Beta 6 has not been confirmed jailbreakable yet. Both tools, Redsn0w 0.9.8b5 or snowbreeze 2.8b5 are said to not be working on the new version of iOS 5. If you have jailbroken your device on iOS 5 beta, then stay away from this new update for now until we can confirm that it has been jailbroken.
As always, stay tuned here for more updates on the iOS 5 beta 6 jailbreak.