I became a Mono fan thanks to your heavy promotion here on AHS
My avatar on Last.fm is a picture I took at their concert a couple of months ago.
BTW last time I checked, people were also developing plug-ins for portable audio players. I think there are already some experimental plug-ins for iPods.
Hopefully there will be a plug-in for my Mini-Disc someday, since I spend quite a lot time listening to it.