references: http://forum.ionicframework.com/t/menu-toggle-only-works-for-left-menu/2250/7

<ion-nav-buttons side="left"> <button menu-toggle="left" class="button button-icon icon ion-navicon"></button> </ion-nav-buttons> <ion-nav-buttons side="right"> <button menu-toggle="right" class="button button-icon icon ion-gear-b"></button> </ion-nav-buttons>

in beta1, you need to do this:1