I think this is a much needed feature for Vegas. A traditional mixing window, with volume faders, panpots, plug-in chains, and I/O settings is an essential asset to any multitrack audio editor. If I want to do audio mixing, I certainly don't want to have the track view be my only option. I want a nice mixer view, with audio levels for every track. Doesn't anyone else miss having this standard feature that so many other programs have, like protools, DP, etc.?