Question: Can modified-hildon-desktop be used to implement *precisely* alt-tab (using an external keyboard) to switch between windows?

As an explanation, I don't mind having to use the screen when I have the N900 in my hands anyway, but I also like to use an external keyboard and then I really hate having to touch the screen to change windows. And, for consistency's sake, I want to use alt-tab on my N900, just as I do on my other computers.

Thanks!