Mention the letters "DRM" and you're likely to immediately evoke two opposing and emotional reactions. The battle lines have become so fixed, in fact that you almost don't hear those letters debated at all any more. That's also because the war has already been fought, and largely lost, when it comes to music.
But what about books, now that they've become digitized? Should the arguments, the answers, and the result (entrenched, opposing camps) be the same?