The iPhone is THE platform for pick-me-up-and-play games. And there certainly are a lot of them on the App Store. Unfortunately, few of them warrant any attention, and even fewer offer any challenge for that grey mass in your skull. But every once in a while, there comes a gem that can really showcases what we’ve come to expect from the App Store. One of such games is Castle Warriors, a reiteration of the Galcon concept, but with a twist.