Does anyone else find it annoying that you must explicitly specify the classes that are included in your library project via the Flex Library Build Path? This is especially annoying in a team environment when someone else adds a new class, and I have to explicitly add it in order to get a successful compilation. (I won't even go into the issues I have with the compiler).
If you look at how Eclipse handles this, you specify a source folder and then can optionally specify anything that should be excluded from compilation. This way, you can just say "my code is here" and it picks up everything unless you tell it not to. Even if the compiler needs to know exactly which files to use, I think a nice feature would be to automatically generate that flexLibProperties file for you.