If all of your content is on the webpage and you are just looking for a way to wrap it, I think it'd probably be easier and more efficient in the long run to just custom make some templates for each platform you are planning to support. You sound like you wouldn't really be using AppGameKit anyways.
Or better yet, skip the idea altogether and just host your website on the web, where it can be updated without approval and where it won't cause people to get irritated that it isn't a real application