The Expendable Few has done well wherever it has appeared so far, and I thank you. It is taking some time to some retailers, however, so I ask that you be patient, or purchase the book on Smashwords.
Why Smashwords? They provide file formats for all readers, any book updates are available immediately for all readers for free, there is no DRM, and they specialize in EBooks, nothing else. They are the experts in the industry. They pay a little more, too - I can't lie.
Here are the links for all the retailers offering The Expendable Few right now:
The book is currently on its way to the iBookstore, Kobo, and Sony.
Thank you very much for your support throughout this launch, I'm doing everything I can to make sure you get access to this book the way you want to.