Examples of XACML implementations

All,

I participated in an expert panel for the Dutch government's open standards body today, to discuss whether XACML should be put on the 'comply-or-explain' list. Even though there was not a single issue raised with the spec itself, the consensus was that it was too early to do so. People kept saying that they don't see a lot of implementations. So I'd like to compile a list of successful implementations to show to these people. Who's willing to share some basic details of projects?

Thanks,
Ray