I'm currently using the Yoast Local SEO plugin for WordPress to generate my KML file which is linked to from the GeoSitemap.  Check it out http://www.holycitycatering.com/sitemap_index.xml.

A competitor of mine just told me that this isn't correct and that the link to the KML should be a downloadable file that's indexed in Google.  This is the opposite of what Yoast is saying...  "He's wrong.  And the KML isn't a file, it's being rendered. You wouldn't want it to be indexed anyway, you just want Google to find the information in there.

What is the best way to create a KML?  Should it be indexed?