With difficulty, none of the Receiver clients can currently decode RealAudio streams.

Real have open sourced some of their code, but it looks like the bits you need to decode the RealAudio streams are still only available in binary form. I can't work out from their site whether ARM binaries are available or not.

Adding Real support to any of the clients would be quite a bit of work.
_________________________
Remind me to change my signature to something more interesting someday