Sorry for the confusion! By the end of the 8 weeks, you will have created your own iPhone game. We assume some programming experience (that you've used e.g. Java or Python, and are familiar with Object Oriented Programming) and teach you what you need to know about Objective-C, Xcode, and Cocos2D to be productive.
1) "Learn to build an iPhone game" is 8 weeks.
or
2) Learn to "build an iPhone game in 8 weeks."
I understand I'm going to need to spend 8 weeks on SOMETHING, but what do I get for those 8 weeks: learning, or an iPhone game? ;)
Something tells me it's going to take me longer than 8 weeks to both learn AND to build an iPhone game.