There is now a public webpage with screenshots and short explanations of how the central account chooser works:
There is also a slidedeck version. And finally a 12 minute Youtube video of the slidedeck being given.
As we continue to improve the CDS demos we will update the page. For example, it does not have screenshots of entries for non-email IDPs, and the photos for Google accounts are still broken in some places (though fortunately Yahoo's handling of photos is better so it works there).
