The intelligence gained by playing video games.
" ... It's a fundamentally different take on problem-solving than the linear, read-the-manual-first approach of their parents.
In an era of structured education and standardized testing, this generational difference might not yet be evident. But the gamers' mindset - the fact that they are learning in a totally new way - means they'll treat the world as a place for creation, not consumption. This is the true impact videogames will have on our culture.
Society, however, notices only the negative. Most people on the far side of the generational divide - elders - look at games and see a list of ills (they're violent, addictive, childish, worthless). Some of these labels may be deserved. But the positive aspects of gaming - creativity, community, self-esteem, problem-solving - are somehow less visible to nongamers." (http://www.smartmobs.com/archive/2006/03/22/video_gamers_tr.html)
Wired article at http://www.wired.com/wired/archive/14.04/wright.html