The author's other books get a decent rating on amazon. Nice to get a freebie.
http://www.amazon.com/Killing-Hands-P-D-Martin/dp/077832639X…
From site:
Coming Home is an ebook that was written with input from anyone who wanted to affect the plot and outcome of a crime fiction novel. Anyone and everyone could vote, watching their plot choices come to life six days later! The book is now available for download as a PDF and also in epub format - click on the relevant link below.
Not much of a bargain in my eyes but +1 vote for the author distributing it in non-DRM-neutered formats.