Streaming mp3/wma is a feature I plan on adding to the servlet-based host (now in alpha at jreceiver.sourceforge.net) whether or not Empeg gets around to supporting it.

To do this, you'll register a stream (such as a shoutcast station) as a virtual tune using the web client. When the 'tune' is requested by the Rio, the server will buffer the stream to it.

--Reed