Given the plethora of user-interface features, a basic design course that covers basic UI design for Windows, Android, and iOS would be greatly appreciated. Such a course should help tie cross-platform UI concepts together to simplify building front-ends to portable libraries. Seeing how a particular feature (page management, for example) is implemented on each of the three major platforms (as well as how they differ in Window Phone and Windows Store apps) would go a long way to making cross-platform application development actually viable. Use of Xamarin could simplity this process considerably, but that would be optional