People are pretty dense... THE CONTENT PUBLISHER REQUIRE DRM, Apple does not have a choice. Apple cannot assure the content on non Apple devices. Same goes for Amazon.
amazon is pretty good at ensuring that I can read my kindle books on windows, macs, iOS devices, Android....
heck, I can read a kindle book on more different Apple devices than I can read an iBook on Apple devices.:roll eyes:
That is the main reason I go with Amazon and not with Apple on Books.