HTML5 adoption of an App URL link standard

I’d love for HTML5 to introduce the ability to add a URL standard that lets you include multiple different link formats, thus giving the ability to link to content in native applications and the ability to fail back to opening in a web site.

ex: If they have the iPhone app open in there, if not than open in the browser <a href=”-iOS: myapp://some/path/here; -android: my.app.scheme://some/path/here; -win8: my.tile://some/path/here -http://some/path/here”>Wishlist</a>