From site: "Prana is an Inversion of Control (IoC) Container for ActionScript 3.0, and more specifically the Flex framework. It enables you to configure objects and components in a non-intrusive way by describing them in an external xml document and having them loaded at runtime."
The FlashGen.Com public development server. Home to various tutorials, articles, examples and downloads. Including components for Flash, Flex and AIR as well as supporiting files and samples.