Ed Bott wrote:Summary: For nearly two years, Apple has wooed digital book publishers and authors with its unconditional support of the open EPUB standard. With last week’s introduction of iBooks 2.0, Apple has deliberately locked out that standard. Here’s why you should care.

Update: This post is part of a series. If you find this topic interesting, I recommend you read the two follow-ups as well: Some standards are more open than others Closing thoughts on Apple’s greedy, “crazy evil” iBooks license