Halo 3 drove up retail game sales 74% in September, and the Xbox console was up 91% from August to September, selling over half a million consoles, with probably 250,00 consoles selling just due to the Halo 3 title.
'Halo 3' Drives Sept. Video Game Sales - Forbes.com
Also noted in the article is EA's revenue drop, which probably prompted the previous news article I posted in which EA is all annoyed that there is more than 1 console to code against.
BioShock for the 360 also went top10, along with god-knows how many Nintendo titles for the ever-popular DS.
Oh, and BTW, the Wii console sold almost as many units as the Xbox, even without a Halo-type game associated.
Sony reported it sold 17 PS3s in September.
(okay, that was a lie. it was 119,000)