This is a great example of responsive design for different devices. I like the subtle use of colours and the drag and drop icons.

Responsive Menu

Flat is the new design trend for 2013 and this is a great example. The text and buttons are clear and it looks like it would be easy to use on a touchscreen Designer: Jakub Antalík Source: Dribbble

Flat Settings UI

I really like this folded paper style menu. It’s clean and has great bold icons. Designer: Adis Source: Dribbble

Quick Unwrap Menu

  This combination of Google maps and clean icons provide an excellent user experience.

Map UI

This is example shows that even simple menus can produce a striking navigation design. Designer: Robin Raszka Source: Dribbble