Is Cloud Foundry a PaaS?

I've been asking some people in the industry a real simple question, "Is Cloud Foundry a Platform as a Service"?

The obvious answer would seem to be "yes" - after all, VMware told us it's a PaaS:

That should be the end of it, right? For some reason, when I hear "as-a-Service", I expect a "service" - as in Service Oriented. I don't think that's too much to ask. For example, when Amazon released their relational data service, they offered me a published service interface:
https://rds.amazonaws.com/doc/2010-07-28/AmazonRDSv4.wsdl

I know there are people who hate SOAP, WS-*, WSDL, etc. - that's cool, to each their own. If you prefer, use the RESTful API: http://docs.amazonwebservices.com/AmazonRDS/latest/APIReference/

Note that the service interface IS NOT the same as the interface of the underlying component (MySQL, Oracle, etc.), as those are exposed separately.

Back to my question - is Cloud Foundry a PaaS?

If so, can someone point me to the WSDL's, RESTful interfaces, etc?

Will those interfaces be submitted to DMTF, OASIS or another standards body?

Alternatively, is it merely a platform substrate that ties together multiple server-side technologies (similar to JBoss or WebSphere)?