Sorry if this is the wrong place to ask, couldn't find a more suitable place.

I would like to know if there's any kind of app (does VNC do this..?) that lets your iPhone act as a secondary display for your desktop - for instance, in Sony Vegas (movie editing program), there's a preview screen that you can extend onto a secondary display, so I'd like to use the app for this purpose.

If there isn't anything like this, does anyone know if there's one in the works?

Thanks.