sso update: meego appears to be handling SSO quite nicely. What I did (and would encourage others to consider doing) is:

First, I registered a regular account. This gives me a userid and password if there are ever problems.

Then, I modified my SSO setting in the account to allow me to log in with my Maemo Openid.

Also, for speed, I made it possible for me to log in with my XRI accounts.

It would be great if maemo would also allow logins with other OpenID providers.