This appeared on the BBC News yesterday - http://news.bbc.co.uk/1/hi/entertainment/7619828.stm
The usual debate will now start about how someone should not pick up on Douglas Adams' work, and how this should be left untouched. Obviously they've never seen the film of Hitchhiker's....
Eoin is a good author - I happen to like the Artemis Fowl books, and besides there is no golden law that says these characters, where the story has not been completed (no-one should ever contemplate a sequel to To Kill A Mockingbird), are sacrosanct. My son, as well as the Artemis Fowl books, is reading the Young James Bond books by Charlie Higson, which are also good.
I'm also a big fan of the Sherlock Holmes stories, but one of the best of those is not a Conan Doyle one. The Doctor's Tale is by Stephen King, but you could almost believe Conan Doyle would have written it.
So rather than being like Arthur Dent and panicking at that news, let's wait and see what happens. After all, for a trilogy, five books so far is good going.
Now, who's for a game of Krikket?