Apple is starting with the DRM-free music from EMI...

Apple Releases iTunes 7.2, Launches iTunes Plus (DRM Free)

256k downloads, no DRM, 30 cents more for the tracks. I absolutely think that's worth it. I'm looking forward to seeing how much of my music falls under EMI, and how long it'll take for other labels to follow suit.

It surprises me to no end that they've managed to finally get to this point, realizing that DRM does nothing to protect music and everything to inconvenience the people who buy it.

EDIT: I tried it out, and I can upgrade the last two Joss Stone albums, Gorillaz' Demon Days and the newer Norah Jones record for $14.40.