[AdamTReineke]

Lots of these new technologies are still in the tech demo phase, exploring the possibilities. Many of these demos, including this one, serve no practical purpose beyond saying "Hey, check out this cool new feature". When these technologies are actually used in applications, they will be used as progressive enhancements: if your browser supports them, you'll see some neat visual flair; if not, the app will still work and you'll never know you are missing something.