I just got a beta key to try out
http://dydra.com/ a cloud-based RDF store... I am playing with my RDFS for a SPARQL endpoint to describe all the software elements of a VistA instance at
http://dydra.com/metavista/metavista-foundation
If folks want to play with it, my beta login name is metavista and password is metavista1 it would be fun to populate this to see what kind of queries we can do...
they'd like to keep the beta repositories under 1m tuples.