Really? When you're not limited to a few out at a time, and when they don't have to be physically delivered to you at a cost of 1-3 days, does the queue per se really matter so much anymore? I can see a lot of different ways to represent saved content for a streaming biz, but DVDs pretty much force an ordering. I almost never use my queue for streaming.
But ratings are another matter. Seems like they could syndicate that data back and forth.