From the (small) article, it doesn't seem like Microsoft is necessarily trying to make gamers out of moms. Rather, they are targeting advertisements towards them so they buy the systems for their children. I can't remember exact statistics but 20-30 years ago men controlled the majority of the cash and made something like 90% of large-item purchase decisions. In recent years I believe the power has actually shifted towards women, who have almost equal say in big budget items (read: houses, cars, appliances, Xbox 360s, etc).