This is just a quick throw it out there post (yes I know it’s been ages (I have part written a few other posts in the mean-time)).
I’ve just added the the functionality of RPX: Instant OpenID and Data Portability.
So what does that mean? It means that you can use an OpenID account, or another Third-Party login, such as Google or Yahoo, or Blogger, etc.
This allows you to use this as a Login, for either Admin purposes, or so someone can leave a comment on a post.
Hoping to post some more soon.