Easy, lightweight, object-based key-value observing (KVO) and key-value binding (KVB) for iOS and Mac OS X

non-working sample code for the service layer.

Keep It Functional - An iOS Functional Testing Framework

An NSTableView replacement that doesn't suck.

A generic styled view class for rendering simple graphics on the desktop.

An NSTableView replacement that doesn't suck.

A more versatile, faster and lighter replacement for NSCollectionView

Official "clone" of TouchJSON from TouchCode

CloudApp's first-party Objective-C API wrapper

Small set of classes to simplify XML/HTML generation in Cocoa apps.

The Objective-C HTTP library that Apple should have created, seriously.

A grid view for iPhone/iPad, designed to look similar to NSCollectionView.

Example of using CALayer shadow properties

An NSViewController (and optional document class) that implements syntax coloring and code editing-related features in an NSTextView.

UMEKit - A port of UIKit for Mac OS X desktop

TDBadgedCell is a table view cell class that adds a badge, similar to the badges in Apple's own apps

A demo application coded with the Cappuccino framework which uses the Juggernaut push server

Example of using CAGradientLayer to draw custom interface elements

Example of animating a CAGradientLayer by its colors property

Example of animating a CAGradientLayer by its locations property

A cappuccino sample project with Google Maps integration

Example of using CAShapeLayer with complex shapes

Example of using CAShapeLayer with basic shapes

A Cocoa 10.6 clone of Kalinium's flash game of the same name

Demo of using CATransformLayer to create 3D objects

Demo app of the custom controls used in ColorDev

The Mobtest library enables iPhone developers to easily add tester response function via Mobtest to their apps.

Framework for iPhone wireframes

App Sales allows iPhone and Mac App Store developers to download and analyze their daily and weekly sales reports from iTunes Connect.