Basic Service and Component Kit

Yet another Flash framework. It is a fairly comprehensive collection of functionalities needed for making Flash applications. Extensibility is highly emphasized, because this isn't an out-of-the-box solution. It is intended to give you as much core functionality as possible without making it inflexible and making it easier to extend it and combine multiple services to do exactly what you want. We use it heavily at DesignAxiom on many of our projects and make improvements when we have time between projects.

http://basckit.designaxiom.com