With Flex, developers can create flash-based apps with features such as chat, real-time dashboards, reliable messaging, and data push services designed to run in the revamped Flash Player 9 virtual machine. Flex 2 now supports server less, stand-alone app deployment as well – good for offline apps in need of periodic connectivity. On the downside, companies with an investment in earlier versions of Flex face a bit of a migration hurdle.
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