Let's talk about form factor, and what impact it has on users when working with Microsoft Surface. Microsoft has said we expect every surface in every room will be a computer someday. Why is Microsoft Surface horizontal then? The video below, part 3 of the 5 part series, I talk with Stimulant about the horizontal form factor and various merits including how it promotes collaborative computing. At Microsoft Surface, we think that's a very important departure from how you work with your computer today. When you think of Surface, think beyond just it being a multi-touch device.