Realtime multiplayer - Options?

Hello, I’m wondering what to choose from these two: Game center multiplayer vs unity’s network, to develop a realtime iPhone game. I’ve read the new unity iphone 1.6 has new networking features on the iOS devices, how is it compared to the Apple’s Game center multiplayer? Is it even possible to create a realtime multiplayer game with Unity using Game Center?

Real-time multiplayer isn’t too difficult using Game Center (I suggest Prime31’s plugin). Game Center is convenient because it handles a lot of stuff for you, but as far as I know there’s nothing stopping you from rolling your own network backend.