flexmdi is now part of flexlib and can be found in the flexlib.mdi package

ALL FUTURE DEVELOPMENT WILL HAPPEN IN THE FLEXLIB REPOSITORY http://code.google.com/p/flexlib/

flexmdi is a robust, extensible Multiple Document Interface framework for Adobe Flex.

Example explorer: http://www.returnundefined.com/flexmdi/explorer/

Docs: http://www.returnundefined.com/flexmdi/docs/

Tutorials and Articles:

Starting out simple with MDICanvas

Custom buttons in windows

Customizing default behaviors

Intro to MDIManager

flexmdi Effects