Some of his points are perfectly valid, but some come across as anti-progress. I have a fair amount of experience in the childrens' book publishing industry. Cu

Some of his points are perfectly valid, but some come across as anti-progress. I have a fair amount of experience in the childrens' book publishing industry. Current ebook formats don't supply the features that educators know improve learning. Text on the page is important, but supplementary audio and video are good for learning. Interactivity is good for learning. Right now, the go-to tool for low-level interactive books is Flash. Yes, Flash. How sad is that? Monumental amounts of early-stage learning materials are being published in a proprietary format that is notoriously opaque, and tied to a commercial "player" that is only available from one vendor. We desperately need tools to create interactive ebooks that are based on open standards like EPUB, and we need them soon.