Great news. I think it’s really time for people to adopt OpenID for their services. I’ve been working on another (secret) service and I built OpenID support into that. You’ll see, if it ever gets released (i.e. if it doesn’t turn out I have been reinventing the wheel again, and I don’t get bored with it before). It’s really quite easy to do, and great for me, because it take a lot of account management stuff out of my hands.
I also just installed the OpenID plugin for wordpress, you can just type your OpenID url into the comment form and post away. A use will be created which you don’t have to enter your details every time, plus you get a cool OpenID icon next to your name. So get a free OpenID account, for example at MyOpenID and try it out!