The ASTRA website (Yahoo/Flash Developer Center) sums it up best:

ASTRA, the ActionScript Toolkit for Rich Applications, is a collection of Flash and Flex components, code libraries, toolkits and utilties developed by Yahoo! for ActionScript developers. These libraries available under the terms of the open source BSD license.

Yahoo has built components that are available for Flex 3 AND Flash CS3. The components are well documented, and they appear to be easily skinnable. Great work Yahoo!

Leave a Reply