Today we're excited to announce that Adobe and Facebook are working together to provide official support for building rich social applications in Flash. An updated version of the ActionScript 3.0 Client Library for Facebook Platform is fully open and available for download now, along with a full set of materials and samples at the Adobe Developer Connection.

Flash has long been one of the most popular languages for building applications on Facebook or integrating with Facebook Connect. Many top applications such as Texas HoldEm Poker by Zynga, Pet Society by Playfish, and Music by iLike, and Red Bull's Connect Site use Flash heavily to provide rich and engaging experiences through audio, video, real-time interactions, and more. Flash has been supported since the launch of Facebook Platform in 2007 through tags like fb:swf and fb:fbjs-bridge, embedding Flash in Feed stories, and multiple client libraries, which have helped you make Facebook API calls directly from ActionScript.

As we reviewed support for ActionScript, we found that the client libraries out there were all really good, but none were complete and fully up-to-date. We worked closely with Adobe to take the open source version started by Jason Crist and revamp it to support all Facebook APIs and add some features to better support authentication for Facebook Platform and Facebook Connect.

The new ActionScript 3.0 Client Library for Facebook Platform is now the fourth officially supported client library for Facebook Platform (after PHP, JavaScript, and iPhone). Download the code, try it out with your Flash applications or Facebook Connect sites, and share your feedback with us on our Developer Forum.

We can't wait to see what you do next with Flash Platform and Facebook Platform.

If you are in San Francisco this week, please come join us Thursday night to learn more and celebrate!