I agree that MobileMe is a privacy concern, but I don't agree that the problem comes from marketers. An automated program will serve you ads which are relevant

I agree that MobileMe is a privacy concern, but I don't agree that the problem comes from marketers. An automated program will serve you ads which are relevant to where you are, and it is unlikely that a marketer can get directly to your data. The real problem is when people who do should not have access to your data get it, or when those who can get access legally abuse it.