Sadly I've succumbed to the idea that HTML5 is just a buzzword now and only refers to something pretty on the web. The good news is if my manager decides that my next project must be "HTML5", I can use HTML4/JQuery and call it HTML5 rather than argue about browser interoperability.
This was absolutely brilliant. I really love how it takes the web OUTSIDE THE WEB by playing with multiple browser windows to create animated content rather than just going for animated HTML within a single browser instance.