Douglas Adams' widow has sanctioned an "official" new Hitch-Hiker's fan-fiction monstrosity volume by some...children's lit author or other:
http://www.guardian.co.uk/books/2008/sep/17/douglasadams Topless Robot often goes over the top with a news story like this, but in this case?
Justified.
More here:
http://www.toplessrobot.com/2008/09/someone_youve_never_heard_of_is_going_to_make_a_hi.php Lightning bolts at the ready, Douglas...
Edit: The venom skepticism regarding this project appears to be spreading...
http://www.needcoffee.com/?p=7803 Good. Leave the man's legacy alone, for goodness' sake. Gah.