A few weeks ago I bought a song called 'Hello Upsy Daisy!' for my niece, it's from a Cbeebies show called 'In the Night Garden', and I'd been a bit hasty and assumed it would be iTunes Plus and DRM free, but it wasn't.
Today I noticed that iTunes is '100% iTunes Plus', so I went to find this song to upgrade it to iTunes Plus, but it seems to be no longer available.
I guess no one can know for sure, but it looks like Apple have removed songs where they couldn't get agreement to make the iTunes Plus, so they could advertise that iTunes is '100% iTunes Plus'.
Today I noticed that iTunes is '100% iTunes Plus', so I went to find this song to upgrade it to iTunes Plus, but it seems to be no longer available.
I guess no one can know for sure, but it looks like Apple have removed songs where they couldn't get agreement to make the iTunes Plus, so they could advertise that iTunes is '100% iTunes Plus'.