All you need is a Mac with one of the newer versions of Snow Leopard. You can apply as a developer and download the ios sdk + xcode.There you can test it in an emulated environment.To test if it really runs on the specific device you should own one though.But to get it on a real iDevice(or into the appstore) you have to…
@Visceral, Nice name! :P Anyway.. at the moment you can emulate your iOS game straight from Unreal on your pc. So it'll create a screen and your mouse clicks act like touchscreen inside it. So you have no need for the actual device, which is pretty handy if you just want to get an idea running before considering it…