I wrote up a draft: http://dvcs.w3.org/hg/fullscreen/raw-file/tip/Overview.html
Defining when exactly the "fullscreen enabled" flag is set for Document objects I will leave up to HTML. As well as defining the "allowfullscreen" attribute. Presumably it should be set for Document objects associated with the top-level browsing context and descendant browsing context as long as their browsing context container has the aforementioned attribute set.
If we want to transition from fullscreen when navigating, HTML can define that as well, neatly integrated in the navigation section. The "Model" section of the Fullscreen specification has an appropriate hook.
I have not added the key restrictions given earlier emails. Unfortunately there was not that much feedback on them, but maybe this draft will help on that front!
I went with "fullscreen" rather than "full screen" as that seemed cleaner and easier to type. I also used "enter" and "exit" rather than "request" and "cancel" as they seemed somewhat nicer too. I'm less attached to this latter change though.
-- Anne van Kesteren http://annevankesteren.nl/
