Since I've downloaded the Kindle app I find that more books are available on Kindle and cheaper too. I went to go buy Ayn Rand's Atlas Shrugged and Apple was high wanting $27.99 for it! Kindle was $9.99. I also went to buy Anthem also by her and Kindle was $.99 and I didn't even think to check iBook but they had it...for free We read a lot of the Brian Tracey books and all of them are on Kindle, none on iBook. By allowing the Kindle app has Apple cut themselves off at the knee's with the iBook store? App wise iBook is prettier but text on a page is text on a page.