Adobe in his secret plan of not letting Me catch up with the latests runtimes 
has just released new beta versions of Adobe Flash Player 11 and Adobe AIR 3 and are available at Adobe Labs.
Some of the new features are:
Adobe® Flash® Player 11 desktop beta drives innovation for rich, engaging digital experiences with new features for cross-platform browser-based viewing of expressive rich internet applications, content, and videos across devices. Some of the features from the Flash Player Incubator, such as Stage 3D and 64-bit support, have been moved into this beta release.
Key benefits of the Flash Player 11 desktop beta include:
Stage3D APIs — Create highly interactive visuals to improve collaboration on 3-dimensional models.
64-bit support — Support for 64-bit operating systems and browsers on Linux, Mac OS, and Windows.
G.711 audio compression for telephony — Integrate voice/telephony into business apps using G.711 codec.
H.264/AVC SW Encoding — Encode higher quality video locally using H.264 video.
Socket Progress Events — Build advanced file sharing apps like FTP clients that send large amounts of data.
HD surround sound — Deliver full HD videos with 7.1 channel surround sound directly to AIR powered TVs.
More info at Adobe Labs
Adobe® AIR® 3 introduces enhanced features that provide developers a consistent and flexible development environment for the delivery of out-of-browser applications across devices and platforms.
AIR 3 delivers innovation for rich engaging applications with unparalleled performance improvements that deliver advanced graphics rendering, high-definition video, and consistent reach across operating systems and devices. AIR 3 is packed with features that will benefit all developers but has a special focus for those interested in developing console quality games, delivering high quality video, or scalable enterprise applications.
Note: The AIR 3 desktop runtime beta is provided to ensure current AIR 2.7 and AIR apps targeting older version of AIR are compatible if You want to test the new SDK You must enrole in the private prerelease program.
More info at Adobe Labs
Seems like a lot of good stuff to play with.
Happy Coding.
Dave
