The patterns & practices team released a guide and source code on how to build a complete Windows Store app using C++ and XAML that works on both touch and non-touch devices and supports four languages and all world calendars. The Hilo end-to-end photo sample provides guidance to C++ developers that want to create a Windows 8 app using modern C++, XAML, the Windows Runtime, and recommended development patterns. Hilo comes with source code and documentation.