As part of Gamasutra's in-depth analysis of January's video game hardware and software sales, Gamasutra has been looking at Activision's flagship Call Of Duty first-person shooter series.
In particular, analyst Matt Matthews has been examining how less Xbox 360 owners are following the Call of Duty series while PS3 fans for the series are increasing, and why Activision will want to create more CoD ports for Wii after World at War.