The hardcover is real piece of artwork and worth the money in my opinion. It is in landscape layout and has spreads over the full width of the book.

There are interactive electronic versions available for iPad and Android (v4). I think the full version has currently a sales price of 99cts. The lite version (no idea what it is) is for free.

I hope to get my new nexus tomorrow so I can try out the augmented reality thing on the Nexus. I am really curious how that experience is.

If you watch the webinar, you can see how they used Poser to do the scenery and how they transformed those to their artwork.