This looks like a really useful insight into getting started to develop Windows 8 apps hands-on labs for Windows 8

A series of eight hands-on lab modules that guide you through development of Contoso Cookbook, a realistic Windows Store app that incorporates many of the key new features available in Windows 8. You’ll learn to work with Windows 8 controls, view states, contracts, tiles and notifications, the Windows Store APIs, and other Windows 8 features. Choose the version of the lab series for the programming language you prefer: JavaScript and HTML, or C# and Extensible Application Markup Language (XAML).

download the hands-on labs for Windows 8

Rob