Hey there, I'm wojtha, fresh co-maintainer for the OpenID module.
Now I'm trying to fix the critical bugs of the OpenID in the D6 and D7. But I'm not an expert in this area, I dove to the OpenID standard 5 months ago for the first time so any help will be appreciated. Now I'm focused on my personal issues with the OpenID, trying to get following three and several connected issues to the next Drupal 7.x release:
Provide transition for accounts with incompletely stored OpenIDs
OpenID discovery spec violation - fragments are removed from claimed id
OpenID discovery spec violation - follow redirects.
(And it seems that they are finally going in 7.x, after 4 months of effort... knock, knock, knock ... WooHoo!).
From my point of view, these are the most annoying bugs, but it is just beginning. Issue queue for the Openid is pretty long.
I would like to see full support of the OpenID standard in the Drupal 8 wrapped in the reasonable API and now is the time when we can really change the things (in D8).
Glad to see that there is a still an activity around OpenID and I'm not alone.
OpenID is not dead!