Today, you can answer the Call of Duty once again, on the device you use to answer most other calls. Activision has announced that the popular Call of Duty: World at War Zombies iPhone game now has a sequel available -- sort of.
The "Shi no Numa" content pack for the original Zombies game is being billed as the sequel, although it's also DLC for the original. If you already have Zombies, you can add the new content, including the "Zombie Swamp" location, to your existing game, for $4.99. It's available as a standalone app for $9.99, for some reason, as well.