I found out here that a pitch for adapting inFamous to a movie has been bought by Sony (who I presume already had the film rights) and will get developed quickly.

I then IMed three friends, Kim (from this site!) Alan (www.alanmacdougal.com) and Kyle (www.kylewalters.com) – all three have played the game all the way through.

[15:11] Boiling Sky: Film rights to inFamous sold.

Kim: eh

Kyle: nice

Alan: Huh. I suppose it would make a perfectly good film. If they kept the plot roughtly what was in the game, and focused on the electro-parkour action.
Alan: The game’s plot was thin for a game, just right for a movie.
Alan: This still means its probability of getting filmed is single digits, right?