I am sure between a $100 price drop and GTA IV and H3, it'll surely help the 360 to far past 10m in the US (fanboyish, sure, but the PS2 sold 600k units in October at GTA VC launch). GTA is a bigger overall franchise Halo has a more deficated fanbase Both will buy 360s because the GTA fanbase will buy the 360 due to cost (atleast most will), and H3 will convert the rest of the die-hard Halo fanbase that haven't got 360s yet. Gears of War proved how well a mega-shooter can do on the 360, even with a rather limited fanbase. Between the gains it has this year, H3 should open up with around 2.5m units sold in November, or more in the US.
Back from the dead, I'm afraid.