Looks like Call of Duty 4 will be on the Nintendo Wii this year

Help me parse the following sentence: “The record-setting and award-winning Call of Duty 4: Modern Warfare is coming to Nintendo. Activision Publishing, Inc. will release Call of Duty: Modern Warfare on Wii on November 10 in conjunction with the launch of Infinity Ward's Modern Warfare 2.” Does that mean Call of Duty 4 is coming to the Wii, or some other Call of Duty game?