Fine article, thanks. You might also mention that SVG files can contain hyperlinks and all sorts of rollover actions. When they're loaded a page using <object> tags their DOMs integrate with the pages's DOM.
Thanks for the feedback @OllieJones! The intention behind writing this story was to give a basic overview on how to get started with using SVGs on web. Animations and other advanced features can be a part of a going advanced story maybe. :)