At this year’s Macworld, Apple announced iTunes was (finally) going DRM-less. However, if you wanted to remove the DRM from your pre-existing iTunes library, it was all or nothing. Proving that they do listen , Apple has changed things, and you can now upgrade your music to iTunes Plus (AKA DRM-free) one song at a time. If you go to the iTunes Plus upgrade page via the Upgrade to iTunes Plus link on the iTunes Store’s Home Page, there’s a Buy All button for a one-step upgrade, or you can click Buy buttons next