That book is also full of mistakes, but it's still a good source of information.
I have read the book but did not see all of these mistakes people are talking about. If there are that many mistakes, someone who noticed them should start a thread and people can add mistakes they find. THAT would be useful information.
As to Na'vi books. look for the DVD release date. FOX thinks in terms of DVD suport, sequel, Halloween (costumes) and xmas. As Avatar is now OFFICIALLY FOX's biggest single movie ever
(screw Star Wars!--Avatar is now bigger at this moment than SW was at this moment), they have learned from Star Wars, and the efforts of other studios. Did anyone know that
Avatar is FOX's
first "billion dollar" movie? This is the biggest thing yet for them, and it may just sink the boat in a few weeks. $200 million is a LOT for any movie to make in first-release, but Avatar is only $200 million away from beating
Titanic to become the number one movie--ever (Worldwide. It need to make $100 million domestically to be the US champion).
Add all of this up and what do we get? Well we have seen Star Wars toys, costumes, comic books, HUNDREDS of novels, and other crap. Star Wars just got it's bitchy little butt kicked all over Endor by Pandora (I always hated Ewoks anyway). The prospect for Avatar books (novels, Na'vi language, possible graphic novels--don't think they will go full comic book mode) looks to be extremely high, but I am thinking they will look to release these things just before the sequel(s) and around major shopping holidays. If we were smart, we would start coming up with ideas for novels, instruction manuals, costume pieces (and whatever). Perhaps the final product that is corporate made will be cheap and flimsy, compared to what one of
aynga dreams up. Perhaps you might get licensing rights (it is not an impossibility). But books on Na'vi? I think FOX made a MAJOR mistake in underestimating JC's vision and is gearing up to capitalize on teh sequel(s). Merchandising is the difference between a $300 million movie and a three billion dollar pin-off empire--or in this case a 1.6 billion dollar movie and a (

) $ merchandising jackpot.