Quite excited to return from vacation today and find an email in my inbox from Martin Gee of ICSynergy (a Sun-partner system integrator specializing in identity management) pointing me to his blog entry on adding CardSpace authentication to OpenSSO. Martin does a great job of explaining his use case, linking a personal card to an existing account in OpenSSO, screenshots and all.
This is fantastic stuff - a great foundation for OpenSSO/CardSpace integration. I'm certainly looking forward to seeing the code made available. And, of course, it will work just as well with Access Manager, OpenSSO's almost-twin.