Nothing really interesting, it does the same thing as MODSupport, plays cracktros etc. I have 3000+ .xm file, so I could not use MODSupport, b/c it uses built-in Media Player, which does not handle lots of files well (and its hard to organize)

So I compiled XMP from GNU/Linux on Maemo SDK, and so far it seems perfectly working, but wastes CPU a little.