IMHO, it's unlikely that you will find a board that would be compatible with the software. The sound card is specific to the device and there's some kind of flash device that holds player state. That's just off the top of my head, there could be more issues. You could definitely use the LCD and attached hardware though. That software was released under the GPL.

I was able to use it to run the interface for a small streaming mp3 app on the central.