Apollo is an entity/component framework for ActionScript. Instead of building your game objects from class heirarchies, Apollo lets you build them with components and systems.
I was too lazy to write an examples when it was first released. Lesson learned.
It’s not a replacement for things like Flixel or Flashpunk. They take care of the stuff people see, Apollo does the “behind the scenes”.
Entity systems are a big topic. The following places have lots of information on them:
Want some examples? Here are some open source projects (mostly written with Artemis) that you can learn from: