I did some more research:
If you are adding META tags to your pages, use the following standard: the "http-equiv" attribute name is used only for META tags associated with an HTTP-level response header, including "last-modified", "expires", and "content-type". All other META tags - including "description", "keywords", "robots", and "fdse-index-as" - should use "name".
To which I ask: Who do I believe?