New Windows Phone 7 applications are being uploaded to the marketplace all the time. But is your application standing out? This week, John and Corrina Black kick off a new Silverlight TV mini series called "Windows Phone 7 Design Tips with Corrina" to highlight ways you can improve the design of your application. Each week, Corrina will focus on some issues and show both how to work through them and how to improve the application's design. In this first episode, Corrina discusses the idea of the mini series and gives some insight into five of the design tips she unveils, including: