Easiest way to connect iPhone and Mac over WiFi with "server client" model

Question

Hi there,

I am interested in creating a server application on the Mac and a client application on the iPhone. The iPhone would send commands to the Mac through this connection.

What's the easiest way to do this? I've seen NS/CFNetServices discussed here:

http://stackoverflow.com/questions/1848525/ad-hoc-wifi-connection-between-iphone-mac-possible

but I'm wondering if that's a little too complicated for what I'm trying to do. Is there a tutorial or example project that walks me through this? Better yet, is there something GameKit-like (in simplicity and functionality) for the Mac to enable this sort of pairing?

Thanks so much for your responses!