Here are the slides of my lightning talk I gave at the DZUG Conference 2008 in Saarbrücken, Germany. It’s about the OpenID plugin for repoze.who which is now functional but not yet released as tests and documentation is missing.
If you want to check out the code, you can find it here (an example application will be checked in later): http://code.google.com/p/repozeopenid/