Docking framework for Vaadin

Is there any plans to develop the docking framework for vaadin? I think that Vaadin really needs it.

You can achieve a similar effect with the
Toolbar Window add-on

If that’s not enough for you please
file a feature request

Thank you, this I need this plugin very much. I want the MDI-like behaviour and this plugin allow write MDI application.

I will write the feature request, because the dockable framework is great aproach to organize great count windows. It seems not very difficult to write simple dockables based on TabSheet and SplitPanels; the visual effects during drag dockable windows and other advanced things is not very important.