I've been meaning to post some information about the shoutcast plugin, but haven't got round to it yet.
Just to be clear: it may not yet work as advertised, and is only available in the 810 version. But I guess if you already run the alpha version, you might be able to handle some breakage
To use it, you need to add it to the core in the web-admin: advanced -> configuration -> devices, open the core device, select the DCERouter and click "Create child device", pick the shoutcast radio plugin template.
After adding the plugin you can change its configuration. Currently you need to edit the configuration text field in the device page. This controls what genres to load, how many stations to load per genre, and how often you want to update the list (too often, and you are banned from the shoutcast list for some time).
After this, you need to reload (or reboot, not sure if reload is enough ? ) and the plugin should be loaded.
To view and play the stations, in the orbiter go to audio and select sources. You should now have a new source named shoutcast. Select this and deselect the others. As the stations don't really have the same structure (performer-album-title) as the normal audio this is recommended. You will see the list of genres, and selecting one will display the stations contained in it.
Select a station and click play. Sometimes it takes too long to load station playlist and you will be told that you cannot play that file. Just try again and it will most often work.
Ok, this was a short description, may contain errors, and is certainly not complete. I will add this to the wiki given some time, and expand on it there.
I am open to ideas of how to present the station list. The current way certainly is not ideal. Also the configuration should be improved, perhaps with its own web-admin page.