Love the idea. Even out of combat, it's easy to get disorientated, spinning around in all directions to find the planet, for example, so you can determine where the station's mailslot is by flying toward the planet. Just checking the left/right/up/down/rear cameras, you can get your bearings after dropping out of supercruise.
Having the tabs at the top of the screen between your legs for up/down/left/right/rear, you can switch between views. If the first tab as OFF, you can turn off the viewscreen as well if it causes frame drops and use it only when needed.