Flex is a fast evolving technology and offers numerous frameworks and tools, which provide a Flex developer a great degree of freedom and flexibility to develop and integrate Rich Internet Applications (RIAs)

Today, the Flex developers have to their disposal open source frameworks like Cairngorm, PureMVC, Model-Glue, Foundry, Guasax Flex, Ariaware and Flest to create stunning interactive web applications. The latest additions in Flex 4 with Spark architecture are revolutionizing the way Flex based web applications are created. Flex 4 is latest addition to the Flex family and helps the Flex developer and designer to come on common platform to create the RIA, easily and quickly. It allows backward compatibility to Flex 3 and Flex 2 tools so that developers and designers can work cohesively to create complex RIAs, easily.

Flex technology is gaining increasing popularity. The steady increase in the Flex developer community clearly points out to the greater acceptance of this technology to deliver outstanding RIAs to the web world. A Flex developer literally breathes life into the website by enhancing the multimedia display. The video and audio clips, live chats, graphical representations and animation mesmerize the audience and give them a feeling of interacting with a living entity.

The latest release from Flex camp, the Flex builder 4 or Flash Builder, as it will now be known, is promising to arm the Flex developer with new tool that supports HTML5 and CSS3 technology. This will augment further, the capability of the Flex developers to deliver stunning RIAs and be at par with other Microsoft Silverlight RIAs. Flex stands to gain immensely from its open source nature. It allows the contributors to put forward their suggestions and these are pooled and approved by Adobe to create a new version. This faster evolution is lacking in Microsoft Silverlight.

Flex is able to integrate the best ideas into its versions at a greater speed. This allows it to launch new products regularly, each overcoming the defects of the predecessor to provide highly customized RIA services. The fast evolving Flex application development technologies are a boon for the Flex developers as they have the best available RIA development tools in the web development industry at their disposal.