There's a now-classic scene that takes place in many an alien invasion flick: The protagonist has finally realized that something is amiss, that the kooky guy shouting conspiracy theories for the first quarter of the film might have been on to something. "Where are the aliens?" he wonders. And the response: "They're already among us."
It's starting to feel a bit that way with subscription-based gaming. We're not quite there yet—we have yet to see the fabled future where a monthly fee gains us unlimited access to every video game, Rhapsody- or Spotify-style—but subscription gaming walks among us already. It's feeling increasingly like it's only a matter of time before we hit a tipping point.
Just today, Big Fish Games announced that Apple was letting them offer a subscription model for their games on iOS. Much like the publications available in Apple's "Newsstand" interface, users will pay $6.99 a month for unlimited access to all of Big Fish's games. (Update: It looks as though Apple has pulled the plug on Big Fish Games' program just after green-lighting it.)