Hello, this is another member of the development team for this project. In doing research for a term paper in one of my classes, I came across this article that addresses some of the issues challenged in this thread. Particularly this statement:

"All learning success that's been attributed to games so far is in my opinion bogus."

Here's some clinical research to validate the legitimacy of learning via video games.

http://legendarypixel.org/Interactive_health_games.pdf