It seems as though Apple backed down on this. Perhaps it was all just a bluff Apple had hoped would work. At any rate, if Apple had carried through with their original threats there might have been a messy class action lawsuit, or even worse a US DOJ investigation. I suspect the little players would have had few choices against a giant like Apple, but Amazon could have easily afforded a long legal battle. Hopefully Apple will now move on to attempting to pick the pockets of another industry not related to eBooks.