I have been fiddling with and blogging about CardSpace for two years. It is finally starting to emerge. One of my readers recently commented.
Regarding support for Card Space on Firefox:
Also, at IOS on Monday, Garret Serack mentioned that he’s been hacking a Windows-only plug-in for Firefox that will invoke the native CardSpace selector. I don’t think he’s released it quite yet.
So maybe you won’t have to leave Firefox quite yet.
I haven’t tried this out yet. I will presently and let you know how it works.