Top app bar in windows 8
All navigation should go in the top app bar. It can be shortcuts to parts of the app or even categories of your app.
You can also have submenus in the top app bar. The rules are not as strict for the top right now, so feel free to make it your own in a unique way.
Don’t forget that you can style the top app bar to fit your branding!
In the people hub they chose a style that goes with their color scheme.
Great British chefs chose iconography that fits their style.
Bing news chose to highlight featured partners/sources on a second row.
This is “Demystifying Windows 8 app bar” part 7 of 8.
Part 8 “Windows 8 app bar recap”