Google say that schema.org uses microdata rather than RDF
Then they provide examples that use RDFa and schema.org:
I assume that the former is out of date, as most things I have read say was can use RDFa with schema.org.
Bing says it understands RDFa for everything except products and offers:
But its RDFa examples use data-vocabulary.org which are similar to, but not compatible with, schema.org.
So will Bing understand schema.org as RDFa at all?