Um, yeah, about that. Two things:

1. grandcentral/mobile just doesn't work to stream those mp3s to the tablet. I get an error from GC, 400 bad request, no matter what I do. They play if you save them first...

2. xmms handler should be:
[code]
/bin/sh -c "LC_MESSAGES=C LANG=C /usr/bin/xmmsctrl launch main 0 equalizer 0 play_list 0 main 1 %params%"
[code]