In terms of sales, Halo 3 has quite obviously become the fastest moving 360 game of all time. One in three Xbox 360 owners have purchased the game already, and Halo 3 currently sits just below GTA: San Andreas as the second fastest selling game in history. Naturally, the game's success has a knock-on effect, as sales of the 360 console have doubled, outselling the Wii for the first time in half a year. Maybe Nintendo needs to sell more ... oh wait.
Among all the other holiday titles on the way, Halo 3 has contributed to an analyst raising GameStop's forecasts.