Pat Patterson brute-forced the OSIS Interop Event and finished all the tests for the opensso solution. Unbelievable work!
I am wondering what this means for the xmldap RP because opensso uses the xmldap libraries. The results should - more or less - show some similarity...
The federated_identity site uses symmetric binding which is not supported by xmldap.
Siemens IdP: Have to look into this.