The App store went live a few minutes ago and the remote app we saw last week went live as well. It controls your iTunes through a screen that looks just like the regular iPhone/iPod touch player, and it only works through Wi-Fi. You can control AppleTVs, too, and you can also control speaker output.
https://gizmodo.com/iphone-getting-a-free-itunes-remote-control-app-5020132
