After taking out “Call of Duty” from the title, Activision is apparently adding it back to Modern Warfare 2. Robert Bowling, Community Relations Manager of Infinity Ward, posted the following message on his twitter:
“Just recieved (sic) the first Modern Warfare 2 boxes straight off the press.”

The accompanying picture shows the Modern Warfare 2 box with “Call of Duty” attached. Activision probably read the survey about Modern Warfare 2 losing brand awareness on Gamasutra before deciding to put “Call of Duty” back into the title.