After more than a decade of experiments with online gaming, its role is settling down. Single-player experiences sell games, but multiplayer modes offer longevity. Online gameplay still isn't usually a feature that will exclusively compel a purchase (MMOGs aside), but it will keep players engaged long after the single-player experience has faded.
So why are there so few online experiences on current handhelds? Demand for online content is at an all time high, so what is holding publishers back? Will we ever hold World of Warcraft in our hands, as in the mock-up images illustrating this piece?