http://www.multitwitch.tv/ 

I wouldn't know how best to direct this towards Robs attention, nor do I have the confidence to come out of my lurkership and wave at anyone on more populated forums and such, but MultiTwitch seems like it could be something for them to consider? As a means for sharing viewership. I mean, I'd love to be able to watch multiple viewpoints, especially if each player had different things going on with their overlays or such. Some people wouldn't be able to stream so much data at once, maybe most, but it'd be something to consider maybe.

I watch TTT and other YouTube series on multiple windows alot, though I have to eyeball it a bit with timing etc.