The apple specific nature of this new authoring platform is a departure from the eBook ePub standard, presumably because Apple thought the UX of eBooks could be way better. A similar rationale for why they introduced iOS apps, how it outperforms mobile web, to the ire of many developers who prefer to work with build once, run everywhere environments.
If you make a killer textbook in the new iBook Author tool, you can't publish it for the Kindle Fire. Contrast that to ePub, a file you could deliver to B&N, Apple, Amazon (they require some weird conversion process), etc, and it would be more or less available to all.
If you make a killer textbook in the new iBook Author tool, you can't publish it for the Kindle Fire. Contrast that to ePub, a file you could deliver to B&N, Apple, Amazon (they require some weird conversion process), etc, and it would be more or less available to all.