I followed the guide above and I'm quite surprised because when I tested the various .stream files created for each language (lang1.stream, lang2.stream , etc), I find that they work with rtmp: I get 5 streams with same video but different languages that I can play on any flash or html5 player.
This is quite unexpected and wonderful.
Has there been some upgrade on the server explaining that ? I did not see anything reported on the Release Notes of the latest updates. I'm on 4.2.0 (build 15089).