NuiLib is a utility library intended to ease integration of NUI (Natural User Input) Devices (such as the Microsoft Kinect) into applications. It provides an abstraction layer which hides the device being input from and provides easy support for common operations. Applications built using NUI lib benefit from the ability to make the logic of how the device is used clear and easy to understand. They also gain the ability to switch to different driver sets or even different devices with no code changes.
NuiLib is available for download or contribution on github.
For more information on this see John’s BLOG.