Covert Monitoring of IM

More news articles from stv.tv and EFF have been published on China working with Skype for chat conversations searching for key words etc. from the investigative work done by a Toronto based researcher. Although this is not a good thing for Skype, I wonder about other IM platforms such as MSN. I have friends in China that also use MSN regularly. If China has a policy to monitor IM transmissions for Skype, logic would dictate that they are doing the same with MSN and other chat programs as well.