alt-tab interface proposal

[Richard S <corn13read gmail com>]

Personally I like the nested alt tab that gnome. I think that the 
interface should be a modal that semi-requires further input. This would
 allow a user better application navigation and management.

Example of better functionality:

If alt+tab press lasts less than X amount of time, switch to previous 
application.

If alt+tab lasts longer than X then the menu stays up and tab key goes 
horizontally through the menu and alt key go vertically. Space or enter 
will choose current app. (arrow keys could be used as well)

Mouse would still be able to navigate through the menu. Hovering over a 
parent item will show children. Hovering over child will bring a preview
 of the window to the center of the display to and make alt tab 
interface semi transparent.

Right click on parent to allow for functions(open new window, close all 
windows, move to workspace X, etc)

Dragging child from one divider to another would move a window to 
different virtual desktop.

It quickly could be made into quite a powerful interface.

I'm not the best with photoshop but I could give it a shot if people would like to see a mockup of this idea set.

Please comment.