Ya know, if you were to port something like this to iOS, you dont need swipe controls. A simple dpad in the corner would do. I've alot of roguelikes on iOS, and most of them use such a system for movement; after all, missteps in a roguelike are all sorts of bad. Targeting and other things would be done via simple touching. You could even have a simple pair of plus/minus buttons under the weapon/ability/stuff bar to handle zooming, to avoid having to do the stupid "pinch" zoom.
