I just can\'t figure out how this works. What I am trying to do is let two players play a game if a third player joins it can instantly join the game, if the fourth and last pla
I would suggest that you periodically (maybe once per second or two) poll for the status of other players, so you can detect if anyone has joined, or left for any reason. Unless the iphone architecture you are using already provides an function that handles that event.
It sounds like you may want to find some more documentation and/or sample code for the multi-player framework you are using.