Today at the f8 conference Benjamin Ling revealed that Facebook will be releasing a Cocoa framework for the iPhone that will allow application developers to integrate with Facebook Connect. The framework is expected to be released sometime in the fall, and will take the form of an SDK that can be used by developers of iPhone applications. Facebook Connect allows applications to integrate the facebook platform and the identity of users into their own applications.
Currently Facebook Connect is only available for web applications, but the announcement of an iPhone SDK is the first sign that Facebook is considering both mobile and desktop platforms as part of their vision.