Components and libraries
Boilerplate. Data. Logging. Fantastic Objective-C Frameworks! iOS Fonts. Cooliris-toolkit - Open source toolkit for iOS applications by Cooliris, Inc. Cooliris ToolKit for iOS & OS X is a collection of Objective-C classes you can use to speed up development of your iOS and OS X applications.
It is used in various Cooliris products for iOS like Discover or Decks. What makes Cooliris ToolKit different from various open-source toolkits is that each feature was designed to have minimal dependency on the other ones. Each feature was also designed to be implemented with a single .h/.m source code files pair. The combination of these 2 design goals makes it quite easy to re-use only what you need from this project without clustering your application with many additional obscure source files.