I attended the NYNMA ITV SIG last night. Lots of thoughts in my head about it.
I published notes for it here.
I have my introductory speach here.
One thing that came to mind was that most of the folks are Broadcast folks with a capital B. That means they think in terms of sending stuff down to "consumers" with not a lot of thought to what people will send back, or send to each other.
I was told, when asking a lot of questions in this realm, that ITV is not the Web, and that's true in so many ways.