Microsoft has posted a video to YouTube that features its engineers discussing the development of Windows 8, and also interacting with and showing off parts of the interface.

The video features Jensen Harris, Director of Program Management for the Windows User Experience, talking from the ‘design room’ at Microsoft and discussing some of the process that goes into interface design and development.

About a minute into the video, you can watch the Start screen in action, with Harris interacting with the tiles using touch. Click here for more details about Windows 8 and Microsoft’s announcement at D9 today.

You can click through to see the official video here.