Digital Rights Management, that nasty bit of coding in an audio file that limits where and how you can play and copy the file may be on it's last legs. Amazon and Wal-Mart have come out against it. What else can the big 4 do but drop it?
an established audience. What happens when your neighborhood garage band tries to make it big using this model?

Comcast has admitted to throttling traffic for BitTorrent and other applications. If you folks sharing music and video feel that "the man" is holding you back, well he might just be.
It seems some Brazilians have learned to use music pirates as a way to promote themselves.