I just updated to the Maverick beta (actually it's a fresh install, and not an upgrade of 10.04). But now "Ubuntu One" doesn't show up in my me-menu thing. In addition, when I go to Ubuntu One from System->Preferences and attempt to log in from there it will sometimes look like it works, but other times it won't do anything. When I go to the command line and type u1sdtool -s it will either say something like "doing auth dance" or "auth failed" and often it has never even prompted me to log in or try to get a new password (even though I know it's correct).
Anyway, this is the main hangup I have with the Maverick beta. I can't get to my ubuntu one account from the native client.
Is this a widespread issue? Is there something I can do to fix this?