|From what I recall Eno (a few years ago) said it was ok to download music for free. He said there was nothing wrong with that. But obviously that's only for him because his last CD wasn't free. And I don't think he produces records for free. His iPhone apps aren't free.|
As for the whole cover art thing, I think it is important and part of the whole package. I spend a lot of time on it with my brother (who's a graphic artist). But it's pretty easy to include a PDF of the liner notes/art work.