Repost from: Dev-Team Blog by dhlizard
Miscellaneous
1) There is no jailbreak (yet) for A5
processor devices (iPad2 & iPhone 4S). It is being worked on. It
will be released when it is complete, and tested.
2) There is
no untethered jailbreak for iOS5 yet (except for old bootrom 3GS which
will always be untethered when Redsn0w is used)
3) Ultrasn0w is not (yet) compatible with 5.0.1
