Topic: Live Streaming


Does anyone have any info on live streaming with Ruby on Rails? I want to use this concept in my software but I need help on where to start. There are several things that come to mind (possibly more ):

1. What does the architecture look like?
2. How expensive is it? I'm strapped for cash and can't afford servers.
3. Can I use an API like a Justin. TV? If so, pros and cons.
4. Am I able live stream action via a mobile device?

As many questions answered would be a great start, as well as other input.