I was surprised by the same issue. This seems to me like an idiotic attempt to hinder "illegal" file sharing. I'd expect crap like this from Apple, but alas, Nokia also has a music store so actually it shouldn't have been a surprise at all.

(well, iOS up to 5 and WP7 can't share *anything* by bluetooth. I'm baffled that anyone with a bit of tech-knowledge would by such device.)