The free promotion campaign has started.
check the title Go Go Nao-p! on Amazon :) There are English and Japanese editions.
So, it's free now. I bought both Japanese and English edition and DL to my iPhone.
The result was - it worked. The book is showed correctly, in Japanese manga style.
At least, on my iPhone(5).
"" tab(in US) shows all generation of kindle, cloud reader, but I can't send the file to my Kindle4/cloud reader. If you have old Kindle (and android tablet), try it and let me know the result!
Anyway, you can enjoy the books with Kindle(fire and paper white), iPhone and iPad(maybe)
Because they are free, I recommend you to buy both editions. Japanese edition is much longer than English one. :) It's all in Japanese of course, but you can enjoy the drawing, I think!