Windows 8

Websites

Dev Center

Getting started with Windows Store Apps

Design Reference

Tools

Requires Visual Studio 2012 Express for Windows 8 and related tools and resources which are available as a single SDK download. Windows Azure is recommended.

Visual Studio:

Other

They have app samples: http://code.msdn.microsoft.com/windowsapps

They have templates: http://msdn.microsoft.com/en-us/library/windows/apps/hh738343.aspx

They have developer camps: http://www.devcamps.ms/windows