Killjoys everywhere agree that planes are not to be used for horsing around. They’ll tell you that planes are solemn, serious machines that should never, ever serve any function except to get passengers safely from Point A to Point B. Resolve Digital is ready to say “to heck with that.” Ace Flyer, an air-racing game for iOS, slaps some racing stripes on some small aircrafts and encourages you to blitz your friends in the wild blue yonder.