I've been meaning to play with OpenID for numerous reasons, some of which I'll post more about at length here later -- but as an exercise in both getting the user experience of OpenID, and capitalizing on the much better social-network functionality of LiveJournal vs. Vox, I've gone and "friended" a bunch of people I know / am friends with / share friends with / find interesting. If you'd like me to read your posts/be able to comment, I believe you can friend me back just like a normal LiveJournal user.
Of course, this is a softball pitch test of OpenID; it was invented by the LiveJournal team, and Livejournal was for a time owned by the company that runs Vox. So it really out to work quite well between these two sites. I'm sure I can find things to complain about, though. Stay tuned!