[TechNewb]

Another interesting note is the level of innovation. Apple is reinventing the 'book' in the digital realm, by providing authoring tools for free, while rethinking what a textbook can be in the digital real (videos, interactive content, etc.). I hope more publishers take advantage of it.

I personally still prefer the PDF for e-books, as it maintains original design, layout, and typography, as well as page numbers. I'd like to see Apple and Amazon both start selling these formats DRM free, with watermarking.

Amazon's Kindle has e-ink, and a great selection for fiction, but not too many text books. And honestly I would not want to read a programming book, or other text book, on the kindle for the reasons stated above.

[chrisbolt]

"I personally still prefer the PDF for e-books, as it maintains original design, layout, and typography, as well as page numbers."

That's great if your device happens to match up with the size of a book, but it's far less flexible when it comes to devices of different sizes. I want to read books on whatever device I have, phone, small tablet, large tablet, computer, whatever. And I want the ability to adjust the size of the text. I don't want to lose that just because some books might not have that flexibility, and most do.

Also, Kindle and iBooks have page equivalents, that solves the page number issue.