Shadow Cities, courtesy of Finnish developer Grey Area. Virtual World News checks in with some interesting information about the game, including the fact that the it tracks your location via OpenStreetMap and creates a game world based on your city before populating it with various enemies.
Gameplay consists of exploring, hunting down rogue spirits, and obtaining new spells as you level. Casting spells is accomplished by drawing rune-like shapes on the iPhone's screen, and players can also join one of two factions and battle other players in the same area of the game world.
The game is slated to be released in late 2010, and you can sign up for an email notification on the official Grey Area website. You can also view a brief teaser trailer after the cut.