And on the Kindle/Kindle reader software. Go to the Amazon page on this website. Only 0.99. It is my Kindle Global Warming 99 cent sale.  It will cost 99 cents until the temperature in Portland Oregon is 99 degrees. Centigrade or Fahrenheit I have yet to decide.
Multiple eletronic versions are available at Smashwords. Still only 99 cents.
...

Free: the iBook/iPad version.  At least until Apple approves my account, then it will be sold for $1.29. Text and audio in one file. Download the zip file here. It is big: 802 Mb. By the way, while I do have to offer it for free under the Apple guidelines, there is nothing to stop you from donating. Hint hint.

According to Wikipedia "Currently, the ePub format can be read by the Kobo eReader, Apple iBooks, Barnes and Noble Nook, Sony Reader, BeBook, Bookeen Cybook Gen3 (with firmware v. 2 and up),COOL-ER, Adobe Digital Editions, Lexcycle Stanza, BookGlutton, AZARDI, Aldiko and WordPlayer on Android and the Mozilla Firefox add-on EPUBReader" as well as calibre (an open source eBook reader/manager).

AVAILABLE for the Kindle/Kindle reader software.  Go to the Amazon page on this website.

Get both the epub and the Kindle Puswhisperer versions, along with the ID Compendium, in one zip file for the same price through Kagi. Two books, three formats for the price of one. $5.00 for everything.

Warning: look for the download link in small type on the confirmation page after placing the order.

Kindle reader for most major platforms can be downloaded at http://www.amazon.com/gp/feature.html/ref=sa_menu_karl3?ie=UTF8&docId=1000493771.