Side question: I'd like to stream some audio content to a few 1000 people (24/7) and wondered if anyone knew (back of the envelope) what the cost model for this would look like? Assuming it's just bandwidth unless I go p2p... Just trying to understand the current lay of the land as I remember the youtube guys were paying $$$/mo for bandwidth when they first started. Thanks.
Hm... If you don't want to build your own streaming infrastructure, then it looks like you can have a 24/7 youtube live stream: https://support.google.com/youtube/answer/2853700?hl=en
"End times are not needed for 24/7 streams."
I guess youtube isn't very suitable for audio, but maybe it is an option for you.