I can stream the XM feed from http://xmro.xmradio.com pretty well. I use the Web browser to open the online player because Web still supports Flash. After I choose a channel, the Media Player icon will appear to the left of the channel input field. In a traditional web browser it's the same place you would use to control playback. Click the Media Player image and the N900 will attempt to play the stream. Of course, MP won't play it, but if you press the "+" symbol, it will show you the URL it's trying to play. Copy and paste that into KMPlayer and voila! I get some minor buffering as the stream starts but then it plays smoothly.