This Underscore template works correctly in the desktop view, but not in the mobile view. You may want to add in evaluations involving Modernizr to add the headers divs, like in this template: https://github.com/aerogear/as-quickstarts/blob/master/kitchensink-html5-mobile/src/main/webapp/index.html#L351

You may also need to combine this template with the "member-Header-Row-tmpl" template above, but that might require reconsidering the roles of the MemberView and the AppView.