AFAIK there is nothing like that for LS, the closest you would get is the snapshot mode of rabidvwm, and that is not really the same thing. But then again... that is hardly an innovative nor an extremely useful feature in my opinion, and if this is what "getting in the new age" is about I hope LS won't be getting there anytime soon. As for "competing with Vista's shell"... I didn't know there was any competition; LS is and will always be more powerful than explorer, end of story.