The Xbox 360 should almost certainly pass the hardware sales of the Xbox and it should do so by a fair amount. Halo as the most iconic franchise on the system will benefit the most from this.
Combined with the series' long legs and you can expect Halo 3 to remain in the sales charts for the next three years which provides ample opportunity for the game to not only outsell Halo 2 but also to sell over 10 million units.







