Recently I have been looking into the interface design and implementation. I have been created a storyboard of how the interface might work using PowerPoint. At the moment I am going to have a augmented reality design. I will have the interface projected over a simplified camera image of just the user.
I am going to use Windows Presentation Foundation (WPF) as my graphical subsystem. I am going to create the interface in a 3D environment. I have been programming simple interfaces that will use the same concepts as the real interface, just to learn how it is down.
I have been playing with the Kinect libraries to see how they work. I found that Microsoft is releasing a official Kinect SDK very soon. So I plan to wait till that is released to see if it is worth using.