I didn't mean to bash anything Hans, just trying to see if this was something that could enhance the PivotXperience. Sorry! There are some non-technical problems with OpenID as well:
http://www.techcrunch.com/2008/03/24/is-openid-being-exploited-by-the-big-internet-companies/
It would be nice to have an account system that 'just works' and is independent of companies or other parties with an interest. From what I've seen of it thus far, I don't think it's going to be OpenID.