Digital publishing is changing, and changing quickly.
For some time, publishers have been able to enhance their PDF documents with tracking functions. This enables publishers to learn which elements of their product command the most attention from their customers. If you’re a game publisher, wouldn’t you like to know that your customers spend 60% of their time in chapters three and four of your latest release, while ignoring chapter seven altogether? The ability to learn this information is already here.
What’s more, Adobe Acrobat 9 now has full Flash video integration. Videos can now be embedded directly into PDF documents, and played without the need for a media player. Think of the enhanced gaming products that could be produced. Do you have a cyberpunk game? Why not embed your dystopia TV videos in your products? Sure, throw them up on YouTube as well, but use that rich content to enhance your digital offerings.
I’ve been looking for a way to sell books for the iPhone for some time. Back in April, while chatting with 
Alex Jurkat, George Vasilakos and I started