Since Kinect for Windows v1.5 there is a 70-page-long PDF on UI & UX for Natural User Interfaces called Human Interface Guidelines.
Most developers think that they don’t need it but I recommend you to read it.
As a developers or a designers, this PDF, this “guide” is a tremendous amount of knowledge that can save you a lot of time and give you inspiration on creating cool applications that have a user friendly UI.
Your application may be the best coded, next generation application, it is worthless when your UI is worthless. You need to pull your user to you application and make them want to use it and not because they need to.
This said, the guide is written with a good structure so it can be used as a look-up PDF or just as bedtime lecture. The illustrations can sometimes say enough and you can really lean about it.
You can download it here, have fun with it!
Table of contents
- Best practices for designing interactions
- Basic interactions
- Distance-dependent interactions
- Multiple users