I´m sceptical about it. I fear that it´ll end up like "Starship Troopers", where the movie has almost nothing to do with the book....IMHO a mini series format like BoB or even splitting the movie into three parts would´ve worked better with WWZ. The book is really, really good and it´d be a bloody shame if they´d turn it into some random Zombie movie.
Will probably watch it anyways, since the trailer looks okay for a Zombie movie, despite some wierd CGI effects.