I think it would be a great idea for someone to build an app which could work as an external touchpad. This would act like the built-in touchpad, not a screenshare device. You could have the dock transferred to it so it was offscreen, and have the desktop wallpaper on it. But the windows would not appear on it. You could also have controls for iTunes and Front Row built into it. Please Register or Log in to view images This image shows what I am talking about. Just look at the touchpad. If anyone with good programming skills can make this, I have no idea how to do it. thanks for trying.