eBooks are a bit problematic for books like #BMGEN. It won't fit the Kindle because the Kindle doesn't really handle visual books well. As to the iPad, I believe we would have to design a dedicated version of #BMGEN to guarantee a great user/reader experience... I would prefer not to publish #BMGEN as it is 1-to-1, but that is in the hands of Wiley, who manages publishing.
There is a similar book; in terms of formatting, called Slideology and what they did was offer the book online via safari.oreilly.com for 45 days; so people who have purchased the book can also access it online. I took screenshots of the most important topics and use it as a screensaver. So it gives me a reference book to stare at.... subliminal-learning perhaps!
Side note, still reading the book and it is great! congrats!