If you are developing Windows 8 apps you'd be interested in these 50 (!) design templates:

 http://blogs.msdn.com/b/malaysia/archive/2013/01/08/windows-8-design-templates-is-now-ready-for-all-the-developers.aspx

 

Better yet - they all come with the source code for both C#\XAML and JS\HTML!

Enjoy!