DS Daily: DS as educational tool

We're no strangers to the notion that the DS is education-friendly; after all, one of the system's best-selling titles is little more than a learning tool spiced up with a dash of competition. The subject has come up over the years, and it's surfaced again as another education professional is coming out in favor of video games as viable job preparation platforms for children, but most of David Williamson Shaffer's work is centered around specific types of games -- games designed as educational software. But what about regular games? As gamers, do you feel that playing has helped hone your wits? That's today's DS Daily topic: what, if any, benefits does gaming provide, and are only certain kinds of games "good" for you?