Adobe just announced he availability of Flash Builder 4.7 beta. Flash Builder 4.7 adds support for Flash Player 11.4 and AIR 3.4, as well as support for the new Apache Flex 4.8 SDK.
With full support to the new Flash Player 11.4 ActionScript Concurrency (ActionScript workers) feature, which helps developers create more responsive games and apps by offloading tasks and computations to background workers. Game content is more responsive as these workers run concurrently to leverage more machine resources while helping to avoid UI freezes and other events that slow down game play. Click here to learn more about Flash Player 11.4 and AIR 3.4 new features.
Flash Builder 4.7 beta improves AIR for iOS app development workflows with support for USB debugging, ad-hoc app deployment, and support for the iOS simulator
More information at: http://blogs.adobe.com/flex/2012/08/flash-builder-4-7-beta-is-here.html