jbienzms 

Makes it easy to use sensors, displays, and other hardware devices on the Windows IoT Core platform.

Provides additional managed helper classes that could not be included in the Core WinMD component.

Defines interfaces and types that can be used to expand the device capabilities of Windows IoT.

Easy to use control available for Windows Phone and Windows 8 that gives ability to prompt users for app rating / feedback based on configurable properties.