Cool. After the menus fluttered down, they felt just a bit too static as rigid rectangles just sitting there.

It'd be cool if you could make them flutter a bit by moving the mouse around or by grabbing and dragging the edges (or some other means).

Think of them as like curtains.

Or perhaps it could be like there is a constant slight breeze, making them move like a curtain in a gentle breeze.

Anyway, just some thoughts.