Just a small follow-up, the Freebase folks posted the following, announcing the Freebase RDF:
http://blog.freebase.com/2008/10/30/introducing_the_rdf_service/ where they say they want to link to external ontologies :-) There is a mailing list available at http://lists.freebase.com/mailman/listinfo/data-modeling for handling this sort of interlinkage. Cheers! y
