I second this. Also, we need a way to prevent a camera angle from automatically switching tracks when a spanned clip spans from one file to the next. If I'm editing footage that spans across multiple 4.4gb files, every time the file switches to a new one, my angle auto-switches to another random angle, and I have to go back and manually force it to stay on that angle.
That large view of the selected camera in a separate window is already available via an external display. Selected camera in full size on external display. All cameras as PiPs on the internal preview window.
Would be great for single-monitor editors, especially those on a laptop editing in the field... but ideally you want to have your secondary monitor be your full screen preview.
A virtual T-Bar for live fade transitions that could be mapped to any midi fader would also be cool. If you're going to go that far, why not also let Vegas take live input feeds from my SDI capture cards and live mix?