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clipped from www.adobe.com

What’s new in Flex 3

  • Native support for Adobe AIR – Flex 3 introduces new
    components and incorporates the Adobe AIR development tools into the SDK and
    Flex Builder.
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  • Persistent framework caching – You can make Flex 3 applications as small as 50K when leveraging the new Flash Player cache for Adobe
    platform components.
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  • Flex Builder productivity enhancements – Flex Builder 3
    introduces refactoring support, new profilers for performance and memory
    tuning, and code generation tools for data access.
    		•

  • Integration with Creative Suite 3 – The Flex Component Kit
    for Flash CS3 allows Flash CS3 users to build components that can be seamlessly
    integrated into a Flex application, while Flex Builder 3 adds new wizards for importing
    assets from CS3 applications as skins.
    		•

  • Advanced DataGrid – The Advanced DataGrid is a new
    component that adds commonly requested features to the DataGrid such as support
    for hierarchical data, and basic pivot table functionality.
    		•
    First steps toward open source Flex.
      blog it