Go build a cross platform mobile device game. There is a whole industry around game development and tons of new "physical" games are invented each year. Take on

Go build a cross platform mobile device game. There is a whole industry around game development and tons of new "physical" games are invented each year. Take one of those ideas and port it to tens of millions of customers with a cool UI and experience. Then tie it into the social online world. Partnering with a game developer should be pretty easy as they probably aren't expecting to be the next Monopoly, but instead do it for love.