Windows Phone 7 provides an exciting new opportunity for companies and developers to build applications that travel with the user, are interactive and attractive, and are available whenever and wherever that users wishes to work with the application. By combining Windows Phone 7 applications with on-premises services and applications, or remote services and applications that run in the cloud (such as those using the Windows Azure'„¢ platform), developers can create highly scalable, reliable, and powerful applications that extend the functionality beyond the traditional desktop or laptop; and into a truly portable and much more accessible environment. This book describes a scenario around a fictitious company named Tailspin that has decided to encompass Windows Phone 7 as a client device for their existing cloud-based application. Their Windows Azure based "Surveys" application is described in detail in a previous book in this series: "Developing Applications for the Cloud on the Microsoft Windows Azure Platform". As well as describing the client application, its integration with the remote services, and the decisions made during its design and implementation, this book discusses related factors such as the design patterns used, the capabilities and use of Windows Phone 7, and the ways that the application could be extended or modified for other scenarios. The result is that, after reading this book, you will be familiar with how to design and implement applications for Windows Phone 7 that take advantage of remote services to obtain and upload data, while providing a great user experience on the device.