RubyIZUMI
RubyIZUMI is an open source RTMP Server for Flash Video/Audio Streaming. It is written in (Pure) Ruby and it supports to broadcast MP4(H.264 + AAC). You can watch it on the latest Flash player on your browser.
Flash Player Version
RubyIZUMI can play with the latest Flash Player version 9,0,115,0 and 9,0,124,0 I confirmed. To check your Flash Player version, use this: http://www.macromedia.com/software/flash/about/
