I just received an email reply from the author of this book, I asked him to consider adding formats to the available PDF and he mentioned he is looking into adding it to Amazon for the Kindle, and would consider other formats if there is interest. If you would like to see another author support your reader or format of choice you should send him a comment about it!
You can contact him at:
eyrifans@gmail.com
Or from his website:
http://www.magicofeyri.com/