Just wanted to add that the Obama administration is reviewing OpenID for consideration within the .gov domain. Also David Eaves just wrote up a good appeal for OpenID in his post canadian governments: how to waste millions online ($30m and counting).
I first became aware of the movement behind the OpenID project back in 2004 at Advocacy Dev 1, organized by Aspiration Tech. At the first Toronto Drupal Camp, I attended a great workshop by James Walker who was running through his OpenID module which has since been released as part of Drupal Core. At that time I decided to set up an account with MyOpenID.com and have been using it ever since. I've been so impressed with this approach to managing usernames & passwords that I've been enabling OpenID on client sites by default.


Like everyone else out there I'm sick of spam but like the idea of bringing user feedback to blog notes like this.
I was happy to have had chance to meet 