Cocoa Browser Air
allows you to browse all Cocoa related APIs of Mac OS X frameworks, such as Core Animation, Core Data, WebKit and so on. You can browse the brand new APIs for iPhone 2.0 to 3.2 as well. This is the best complement tool for the Cocoa Programming on every platforms provided by Apple Inc.
This software inherits the sophisticated user interface from Cocoa Browser which was made by Takanori Hoshi, but the source code is completely rewritten to improve its ease of maintenance and stability.