CodeRunner is quite an app, and I almost don't want to tell you what it is before you try it. In fact, let's not Just go download it from the App Store and experience it for yourself first. It's US$2.99, but if you've been following location-based iPhone games, you'll find the price worth the experience. Back? Great. Now we can actually talk about how this thing works. CodeRunner is the work of three guys I met at GDC. One of them, Michael Ferraro, has a long history in traditional console game development. Ryan Chapman has a background in server engineering; Jeff Macpherson is perhaps better known as Dr. Tiki from the popular Tiki Bar TV web v
