The absolute cutting edge for application development at the moment is using Macromedia's Flash MX (the premier software for designing fantastic looking interfaces) with Microsoft's .NET framework (tremendously powerful server-side technology).
Combining these technologies has been greatly aided by the release of Macromedia's Flash Remoting MX, which is covered fully in this book. Designers and developers involved in the creation of this technology impart their knowledge to you in this book through extensive case studies.
Flash Remoting is not the only way to combine these technologies, however, so this book will fully cover Flash/.NET integration using ASP.NET.
This book is for readers who are looking to integrate their Flash movies with a .NET-enabled back-end. It assumes no prior knowledge of server-side technologies, but does require knowledge of Flash MX and ActionScript.