I tested to make 1 fast track live in twitch.tv few days ago.
Had huge 18 ppl watching me and we made this track together :D
I know it's very very simple loop. I was just testing out how it would end up when making track live and let watchers decided template sounds or try to point out what to do when trying to make a sound from basic buzzz.
We actually had fun. However twitch.tv is made for games mainly (I think) and that's why there were some trolls whining and eventually I decided to say good bye :/
Maybe I'll make track live again later when I know more about twitch.tv and so on...
(used it first time ever and I am suchs a noob when it's about live streaming).