..ookay so why does it matter if microsoft is perferring html5, as you claim, at all?
yeah, there are alot of web apps, but compare the prevelance of webapps on phones compared to native phone apps? for phones its pretty safe to say people perfer native apps compared to browser experiences.
you put it best yourself, WinRT is an advancement for web developers on win8, but its some thing that xaml developers are already used to, so its no huge advance for them (may be even a regression?) remember that winRT is the same for all the app models..
we'll see, as you say, developers will decide. its a very interesting time since for the first time the web application model is at a direct competition level with other app models, as opposed to beeing the "default" and having no competitors as is the case on the web.