Both Mcmillan and Amazon have issued statements about the story linked to previously, wherein they stopped selling Macmillan e-books after the publisher wanted to raise the price for best-sellers to an agency model $12.99 to $14.99 -- which Apple had already agreed to for iBooks on the iPad.
Mcmillan's CEO, John Sargent's comments ran as a paid advertisement in the Sunday edition of PublishersLunch and read in part:
Under the agency model, we will sell the digital editions of our books to consumers through our retailers. Our retailers will act as our agents and will take a 30% commission (the standard split today for many digital media businesses). The price will be set the price for each book individually. Our plan is to price the digital edition of most adult trade books in a price range from $14.99 to $5.99. At first release, concurrent with a hardcover, most titles will be priced between $14.99 and $12.99. E books will almost always appear day on date with the physical edition. Pricing will be dynamic over time.
The agency model would allow Amazon to make more money selling our books, not less. We would make less money in our dealings with Amazon under the new model. Our disagreement is not about short-term profitability but rather about the long-term viability and stability of the digital book market.
Amazon's response can be found in full on Engadget, but contains: