The apps display related articles in the footer of each article. It should be possible to append this footer via a js function call in mobile-html articles.
Something along the lines of window.wmf.fetchAndAppendRelatedPages(), params TBD
js on the page requests related pages and appends them to the article footer
Once the related pages are fetched, the mobile-html js would have to have a way to ask the apps whether or not the user has that article saved to display the appropriate bookmark state. It would also need to communicate save/unsave events when the user taps the save/unsave button.