Windows Phone 7 is based on a new smart design system that focuses on what is most important to the user. Although you can create your own design, many developers have asked for guidance, tools and controls to help build integrated app experiences that closely resemble the Windows Phone 7 phone design system. The UI Design and Interaction Guide for Windows Phone 7, version 2.0 now offers detailed information about UI elements and controls, UI system behaviors, and the interaction model for the touch interface. The new Design Templates for Windows Phone 7 provides a collection of 28 layered Photoshop template files and the Segoe WP font family for use in application layouts and UI development, or for pitching an idea. Check out these tools for help in creating an app that is well- integrated with the Windows Phone 7 experience.