How would I add networked multiplayer support to an iPhone game?

Question

I am looking to extend an iPhone game by adding support for networked multiplayer capabilities (preferably over WiFi). How would you suggest I add this functionality to this application?

Answer 1

Game Kit can be used to add match making and network communications to your game.

Start with the Game Kit Programming Guide which has step-by-step instructions for many scenarios and lots of sample code.