Cityguide Mobile App Template includes 7 well-layered screens. Cityguide can be very helpful if you're planning create great looking mobile app.
Museo™ – Retractable Menu
Dribbble - gravity_UI-kit_full_small.jpg by Angelika Omer
quadratisch basierte Illus in derselben Strichstärke für eine immer neue angeordnete Zusammenstellung
Skype Iconography. Icon Design for Skype UI
I like the fact that the main content on the page never disappears, although the interacting with the side bar is at an all time high. It's a very clean layout with flat ui colors that speaks nicely to the flow of the app.