The Windows Live Messenger 8.1 Beta program has officially started! All accepted participants of the beta program can download build 0064 of WLM 8.1 from MS Connect right now.
At a glance, the aim of WLM 8.1 seems to be to provide users with a better roaming experience. It seems that your display picture is now stored remotely, so will remain the same when you use different computers. Users can now also set up seperate "locations", which can be made publicly visible by the user's contacts.