Not only has the Guitar Hero videogame series surpassed $1 billion. Guitar Hero III: Legends of Rock itself has, GameDaily reports. It, too, reported on Activision CEO Mike Griffith's keynote at the giant CES show in Las Vegas last week, citing his statement that "the videogame industry has had a profound effect on other entertainment sectors, and that Guitar Hero in particular has been hugely … [Read more...] about 3rd Guitar Hero 1st to beat $1 billion