By Jeanette Stallons:
Adobe Flash Builder for Force.com is an IDE developed jointly by Adobe and salesforce.com that gives developers a single, powerful tool for building Force.com Flex desktop applications with Flex and Adobe AIR. This tutorial series is designed to step developers new to Flex through the process of building an application from start to end, covering salesforce.com, Stratus, Flex, and AIR fundamentals.
Some of the content covered in this tutorial series is also covered in the quick start, Create your first Force.com Flex desktop application. The quick start builds a basic Force.com Flex application using the standard salesforce.com Account object. It provides succinct steps without details or explanation. This tutorial series builds a more feature-rich application using custom salesforce.com data that you create and provides detailed explanations of all the code you create when you create it.
Before jumping into the tutorials, make sure you read the Flash Builder for Force.com technology overview article, Understanding the technologies for building Force.com Flex applications with Adobe Flash Builder for Force.com, to make sure you understand all the technologies involved in creating and running Force.com Flex applications.
Read more at: http://www.adobe.com/devnet/salesforce/articles/salesforce_desktop_00_intro.html?devcon=f1