My interpretation is Apple wants to influence what the final standard is going to look like. This is their vision for it which is largely based off the current W3C working draft. What's wrong with that? That's how the process is supposed to work. Apple has a few features not presently in the working draft that they want to see in the final standard. Here's the demo and you can get the WebKit source code to see how it works. The W3C, which Apple is a member of, may ratify it as part of the standard or they may not. I don't think there's any indication it will effect WebKit's ability to follow the final standard.