Redsn0w updated to rc 12, adds Animated Boot logos for 4.3.1!
So earlier the jailbreak tool, redsn0w was updated to
rc11 rc12 to include Animated Boot Logos for iOS 4.3.1 🙂
You can download redsn0w for Windows and Mac at the Dev-Team Blog
Update: Redsn0w has once again been updated, this time to rc12 which fixes some issues with custom boot logos