We’re running a challenge where in you can Win a Nokia Windows Phone. The rules of said competition are detailed in the aforelinked post. There will be many more questions over the coming weeks, here is Question 2.
The Mango update for Windows Phone brought with it a large array of APIs for working with hardware and integrating into the core platform experience. For example, application developers have raw access to the video stream for the camera, and they can directly access contacts and appointments from the device.
List an API (or a set of APIs) that allow developers to build Windows Phone applications that integrate with either device hardware or into the core platform (e.g. integration into one of the hubs)?