I’ve done a fanfic Firefly novel. If anyone is interested, it can be found (free for download) here.
Note from Kit to Boing-Boing visitors and other new arrivals (2/18): Hey all, welcome and enjoy the novel. Things have been busy in the Dream Café since we released this, and so we unfortunately did not prioritize fixing the typos our readers have sent in or putting up other file formats. Please check back soon — by Wednesday I hope to have a bunch of mobile friendly formats available, and to have corrected the typos you’ve sent in.
Note from Kit (2/22): Welcome to New York Times visitors and other new arrivals. Thank you to all the readers for your patience — I’ve corrected all the typos I was sent and updated the files on our website. The book is also now available in HTML format. Hopefully, other mobile friendly formats will arrive soon.
Second 2/22 update: a .prc version of the file is now available for mobile devices.
December 2012 Update: Here’s a new link for the updated Dreamcafe.com: http://dreamcafe.com/downloads/