The Pleat menu that is used in Buzzword is really sweet. I wanted to emulate in an attempt to get a reusable component along the same lines. This is the first draft at my attempt, and it admittedly needs some work, but it is still useful, even in its current state.
One of my goals with this is to have all the actual controls in the Pleat available at the top level. This makes it a lot easier to capture in PureMVC (or your event/notification system of choice) and doesn’t bury the components. I want to go in and refactor it some more to emulate the Adobe set of Flex components. We’ll see if I have the time 
the icons are from the awesome fugue set found here.
The Pleat Menu – Flex Component (draft) by Joel Hooks, unless otherwise expressly stated, is licensed under a Creative Commons Attribution 3.0 United States License.