Simple to use slide out menu (like mobile Facebook, Gmail, etc.)
A very nice plug-in for tablet and mobile navigation.
Just install and go to your (primary) menu and add a tick below the menu in the box before "Offscreen Nav".
4 stars instead of 5 because you need use CSS a little with media queries to choose to display the menu only below a certain pixel width with #mobile-header toggle display: none and display: block.
Simple, easy to use and works great!