It's official (sort of): Video Games make you smarter.

At least, for some definitions of smarter:

'Players can process visual information more quickly and can track 30% more objects than nonplayers," says Daphne Bavelier, associate professor of brain and cognitive sciences, and member of the Center for Visual Science 'Several game players even achieved perfect scores on tests barely doable for non-game players.'

I don't know about you, but that sounds perfectly reasonable to me... I also know a certain martial artist who has a hell of a time trying to process the visual data she would need to actually defend herself... maybe I should sit her down in front of Medieval Total War and see if she can win the battle of Stirling Bridge...