That's very interesting, Jarmo. Hopefully the midi and audio drivers will work.
I seem to remember from the panasonic mp3 players the SD card needs to be loaded with audio (not technics or midi, these can be done direct) with jukebox or some program designed for the format of the SD card. I don't know whether the mac programs for the IPod type players have these functions. That is something to look out for. If all the pc programs run through VirtualPC, then you are fine.