Games is the most popular category of iOS apps. A game with excellent Game Center integration not only increase replay values, but also gives you a way to promote your app through words of mouth. Microsoft’s Xbox Live demonstrated how effective this can be. You can have it too. Game Center provides you in game persona, leaderboards, achievements, multiplayer support, and peer to peer networking. We’ll discuss how to effectively use Game Center in your app, and the examples of well executed in-game achievements.

You just got a great iOS app idea. You are convinced once your app is released on App Store, you’ll make millions of dollars. Fame and fortune will follow. You’ll be the next geek hero. All fired up, you download XCode, iOS SDK, pay your $99. Ready to become the envy of your peers. Then you stared at Objective-C. “No Problem, I can power through this.” But days turns into weeks, weeks turn into month. If only there is a more productive way. You start exploring various scripting language solutions, only to find out that none of them can really integrate with the Objective-C runtime very well. Until now. Lua with Wax brings GC, dynamic language and full access to the entire Cocoa framework. It also has built-in REST support, closure and pattern matching. Now you can resume the dream of becoming the next geek hero!