I'm the author of this article. The main problem I found with EPUB and MOBI is how they are implemented in each reader. For instance, kindle 2 doesn't format ta

I'm the author of this article. The main problem I found with EPUB and MOBI is how they are implemented in each reader. For instance, kindle 2 doesn't format tables correctly, while kindle 3 does. iBooks has some undocumented bugs that makes you want to cry. If your book is simple (just text) there's no problem; but if you have source code, tables, images, etc., you may run into problems.