On a current project I have, I had to build a Microsft Windows style windowing application that allows new TitleWindow compoents to be added and managed on a menu bar...with all the features of minimizing (docking), maximizing, and restoring windows.
I didn't see much in the community that had anything built like this so I dove straight in. It's by no means a polished product, but it works nice. Click the link below to demo it (and view source).
You'll notice that Minimizing the window docks it (I have not added Transitions in yet). Click the "Start" button to open a new window (which is added to the menu bar).
keywords: Flex 2.0 2 Adobe Panel