Check out the great Flex framework overview article FrameworkQuest on InsideRIA for some excellent in depth coverage of some Flex frameworks. The author also has a great Cairngorm/RIA article (Anatomy of a Flex RIA), though some of his examples are a little dated and not best practice, good primer. Following are some MVC architectures you may want to check out as well:
- Parsely - This framework is interesting allowing the use of Presentation Models and dependency injection.
- Mate
- Swiz
- Prana
- Finally, check out Tom Sugden's IoC Framework discussion. Professional Flex 3 is a great book with lots of good examples. Tom contributed some Cairngorm chapters.








