Apparently Microsoft has tried to patent an advertising system that targets people's emotional states based on their search queries, emails, instant messages, playing of online games -- as well as facial expressions, speech patterns and body movements -- collected by personal digital assistants, smart phones, laptops, PCs and gaming devices. Microsoft's Kinect, the motion-sensing gaming device for Xbox and Windows, seems like the most obvious data collector, since the application states "that a user who screams or paces back and forth, when observed by Kinect, could be assigned a negative emotional state by a currently hypothetical advertising engine." Said one Ad Age reader, seemingly very much in the moment, in the comments…