OK, it's not as catchy as the Soup Nazi's "No soup for you!" but I have not bought in to the video - streaming or otherwise - craze.
The new Apple iPod lets you watch video, like missed TV shows, on your device. Oh boy. If the shows are that importnat can't you Tivo or record some other way and watch on a decent screen?
And video webcasts seem like a waste. Even though most of us have decent speeds and bandwidth to support video, too many webcasts just show the speakers head; which may or may not move from time to time. Or they display a Powerpoint slide. Yawn. What a waste.
Plus, video has the same drawback as text - you have to focus your eyes on it whereas with audio (podcasts and the like) you can listen and still do other things.
Just because we have the technology to do video we need a more compelling reason to use it IMHO.