The latest I heard was that Atari was to publish it, they ditched, so he's sold the story rights to Disney and Jerry Bruckheimer (who did Pirates of the Caribbean) is supposed to pick it up and do a trilogy. Then, the games are supposed to tie in with the movie. And, the book is supposed to be out late this year or early next year.
I hope they haven't scrapped it completely!!!!
(sorry, off subject a bit, but still semi-related!)