Frédéric Harper gave a presentation on Microsoft's Modern UI design in Windows Phone. He discussed the design style which takes inspiration from metropolitan signage. Programs on the phone should reflect this style. He outlined key Windows design principles such as being fast and fluid, doing more with less, and authentically digital. The Windows Phone SDK helps developers follow the design style through default elements, behaviors, and fonts. He demonstrated designing the navigation and layout of an app on paper before using tools. Project templates in the SDK map to different app styles.