I've kicked off my personal project. As there seems to be very little CardSpace experience around the world at the moment and DotNetNuke is my favourite CMS, I've decided to integrate the two together. When I get this going I plan for it to be integrated into the DotNetNuke core. This should kick off a proliferation of CardSpace enabled sites around the world.
At the moment, I'm extending the DotNetNuke WebControls library to create a generic CardSpace control for DNN. This will then be contained with a DNN module for use on any page.
At the moment I'm going to get it working for self issued cards. Managed cards will come in the future, I'll probably start by doing an integration with the Microsoft Live Secure Token Service (Microsoft Live STS).
If you'd like to be involved please leave a comment.