Applying ZUI concepts to the desktop OS
What if we could break away from a fixed desktop and implement a limitless work area in which you could open all your documents and applications and simply pan around to view them all. Perhaps hold a key, like Control, and simply move the mouse around to pan. Maybe add a “mini-map” of all your items somewhere which you can use to jump directly to where you want. I think this is the next step in evolution after virtual desktops.
Perhaps you could store various apps at different zoom levels — or maybe applications would reveal more information when you zoom into certain areas. There are potentially a lot of things you can do with zooming. Here’s a very cool concept of a ZUI website: Zoomism — it’s a functional example interface, implemented using Flash.