I saw a software tool on the Apple stand of the Video Expo back in February.
It meant you could take the live vison mix from a studio and drag it into Final Cut where you would get the mix as a complete edit on the timeline, and all the cameras as ISOs in the browser. This tool worked with Final Cut Server and even better supposedly with CatDV. I think it even came as a multiclip in the timeline.
It meant if you just needed to tweak some of the vison mix edits it was very, very simple.
Of course being 6 months ago, I can't remember what the software was.
I'd be very greatful if someone could jog my memory.