Here's a follow-up from Comcast's CTO, Tony Werner.

"It's really important to us that we make crystal clear that, in contrast to some other providers, we are not prioritizing our transmission of Xfinity TV content to the Xbox (as some have speculated). While DSCP markings can be used to assign traffic different priority levels, that is not their only application — and that is not what they are being used for here."

http://blog.comcast.com/2012/05/the-facts-about-xfinity-tv-and-xbox-360-comcast-is-not-prioritizing.html

So there you have it, from the horse's mouth, so to speak. Comcast is NOT prioritizing packets.

Nice List

Tuluntulu has developed mobile video streaming tech that can deliver unbroken video streams over EDGE networks (as low as 24 kbps). download from Google Play & test app in your market 
https://play.google.com/store/search?q=tuluntulu&c=apps&hl=en
Feedback appreciated

Not too shocked, assuming we are counting desktops in this study (although the living room is simply too hard to resist since that tends to have the largest screen in most setups)