Is it a cop-out to simply say that Cocoa is whatever Apple directly imports in Cocoa.h? My gut feeling is to say that it is anything that is inspired by the OpenStep API. So, as a Cocoa developer, I'd say things like CoreImage and WebKit should definitely be something a "Cocoa developer" would be comfortable with, even if Apple has only committed to adding CoreData to the header as of Tiger.
by Doc — Oct 05