In fact, Amazon does allow eBooks to be sold through the Kindle store without DRM, and many are sold that way. It's completely up to the discretion of the publi

In fact, Amazon does allow eBooks to be sold through the Kindle store without DRM, and many are sold that way. It's completely up to the discretion of the publisher. Whereas I have many eBooks purchased years ago from Apple's store that I can only read on Apple devices, not on my Kindle.