Summary: Adobe® has released the free, open source Flex SDK framework to enable developers to create Rich Internet Applications (RIAs). The Flex framework provides you with a method of creating cross-browser, cross-platform Web applications that is quick and simple. Flex applications run in the Flash player, which is installed on the majority of Internet-connected computers, but Flex also provides you with an object-oriented user interface framework similar to Java™ Swing. In this tutorial, develop a Facebook application in Adobe Flex that displays a slideshow of a user's Facebook photo albums. The Facebook application will contain a profile box listing all of the user's photo albums, each a link to a Flex slideshow of that album. The Flex application will use the Facebook REST API to fetch the photos of the selected Facebook album and dynamically generate the slideshow.