What I've found so far is that using the Navigator to control the camera, once you adapt to -not- using the mouse to do so, lets you close the trackball and hotkey which camera you use. So you reclaim that workspace for other things. The main problem I have is that the smoothness of control with the Navigator isn't consistent. One time it's a dream, another time a spastic nightmare. No doubt there is something running in the background that is conflicting with the Navigator, I just haven't found out what yet. That said, it has proven to be a wonderful addition to the controls for the apps that support it. Now if e-on would implement control compatibility with Vue, I could easily see it being used to fly the camera about.