Flex framework’s current stable version is 3.x and the Flex team at Adobe is actively working on getting the version 4.x ready this year. At this time, the core SDK of Flex 4, codenamed Gumbo, is evolving through an open source process. From peeking into its initial version, it looks promising as there are serious attempts to create a clean separation of behavior and presentation in the components, apart from the tons of nifty enhancements throughout the framework. (I promise to write about some of the forthcoming features soon)

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