Yes, Battle Copters has MFi controller support!
Battle Copters on iOS does support controllers and is compatible with the MFI standard.
Compete in the most ACTION PACKED multiplayer airborne battles, with easy controls and AWESOME DOGFIGHTING action! Take control of a mighty Battle Copter and immediately plunge into 8 player ONLINE BATTLES to the death over 5 dangerous locations.
Lock on your missiles and UNLEASH HELL on your opponents as you swoop through the arenas in aerial combat.
TAKE THE BATTLE TO THE SKIES: Instantly playable, arena based, helicopter combat 8 player online multiplayer with 'Free For All' and Team Deathmatch action Arcade like controls and quick fire gameplay Enter a sky full of combat with up to 8 Copters in the sky at a time as well as 4 droneswww.
Chillingo.com 18 war birds to pilot Develop your warbird with a host of customization options and ice cool camouflage 5 custom arenas from a stunning, apocalyptic, city to a desolate arctic comms station Join or create your own Squadron and battle together to dominate the skies Important Consumer Information.
Battle Copters supports MFi controllers.