We have good news about Flash and Flex accessibility support to share. Please check out the following statement:
Adobe understands how important it is for computer users with disabilities to be able to access the entire Internet. In recognition of the needs of computer users with disabilities, as well as the demands on developers who need to easily create applications and content which comply with global accessibility standards, Adobe is planning major upgrades to the accessibility support in Adobe Flash Player.
The upgrades expand on Flash Player’s existing support for accessibility via the Microsoft Active Accessibility interface (MSAA) and will enable accessibility across all three major operating systems (Windows, Mac, and Linux). The Flash Player will employ IAccessible2 from the Linux Foundation and the WAI-ARIA specification from the W3C to address user and developer needs and to ease interoperability with assistive technology vendors.
Additionally, enhancement are planned to the free and open-source Flex software developer’s kit (SDK) including improvements to complex components such as Flex datagrids and adding support for WAI-ARIA to simplify development of custom user interface components. These improvements are expected to start with the next major release of Adobe Flash Player (following Flash Player 10.1), and the first successive release of the Flex SDK.