basicaly yes. to be fair: it can pick up all the internet radio streams mplayer is capable of streaming. that should be all shoutcast and iceast like streams. right now retroradio will only work with playlist stream urls (because i thought it makes more sense - using playlists i can iterate over all the relays, instead of just one which might temporarily be down). but if you like i can easily change that. with python under the hood its easy to check if the link is a playlist or not and pass the url to mplayer accordingly. that way you could add any url you like to the list and mplayer will play it (if it can). then it would be fair to say: it plays all the streams mplayer can stream.