A complete and thorough reference for developers on the new Flex 4 platform Create desktop applications that behave identically on Windows, Mac OS X, and Linux with Adobe's new Flash Builder 4 platform and this in-depth guide. The book's tutorials and explanations walk you step-by-step through Flash Builder's new, faster tools; the new framework for generating code; how to connect to popular application servers; upgrading from Flex 3; and much more. Shows you how to create rich applications for the Web and desktop with the very latest version of Flex, with detailed coverage for both new and veteran Flex application developers Walks you through Flex basics; upgrading from Flex 3; how to create desktop applications with AIR; and integrating Flex applications with the most popular application servers, including ColdFusion, ASP.NET, and PHP Includes extensive code samples of common tasks that you can use to jump-start your development projects Flex your development muscles with the Flex 4 and this comprehensive guide. Note: CD-ROM/DVD and other supplementary materials are not included as part of eBook file.