As Cory Doctrow points out, Amazon has not revealed exactly what they mean by DRM-free. Moreover, the difference is not labelled on the Kindle store for consumers to see. Thus, while it is absolutely true that the publishers deserve blame in this case, my point is that Amazon is not helping to kill DRM and make their platform open to non-Amazon sellers. Of course, the big difference between this and the Amazon MP3 store cases is that with the Kindle, Amazon makes the device.