On the home page, I have it set to use the presentation page, which the main menu (not the top navigation menu or the footer navigation menu) works great and shows up correctly. However, when I use the main menu to navigate to another page, category page or tab page, the main menu does not show up on my iPhone. When I go into any other browser (Chrome, Safari, iOS Simulator) on the desktop and make the width as small as an iPhone, it I get the same results. The only way to get the main menu to show up is that I have to make it large enough to show the normal menu then make it small enough again to show the tiny menu. The mobile menu will show when I do that. Of course, I do not have this ability on an iPhone.