"These aren't the Flex developers you are looking for..."
Flex Builder Enterprise plug in
Just came across this, the Enterprise IDE Plugin, this morning. Although I haven't tried it yet I wanted to pass it around and let people try it out. It has features that the community has been asking about, Java-AS code generation, Cairngorm integration and more. Definitely worth a look see. I will take a look at it and post some feedback when I get a chance.