YAY is, as acronyms go, passable. YUM is a good one. BOG, not so much, and that's the acronym staring at me on my iPad, daring me to load up Battle of Gundabad. Let's get one thing clear at the outset - the only bit of the phrase 'universal app' that's ever true is 'app'. While it's true to say that BOG and many other games will function on both iSmall and iBigger (which many of you will know as iPhone and iPad), to argue that this makes them an identical play experience on both platforms is invariably a nonsense. BOG is an iPhone game which you can download to your iPad, and it really shows.