A Modern, Native Mac OS X Browser Platform based on WebKit with a Cocoa plug-in architecture, tabs, userscripting, userstyles, URL shortcuts, Twitter integration, more.

Do you want to test your next Mac OS X-to-Arduino project without always having the Arduino available? Do you want to test you cool Processing application when your mate hasn't finished writing the Arduino sketch? Do you want to do test driven development of your Mac OS X based application without dependency on your microcontroller? If the answer to any of these questions is yes, then VirtualSerialPortApp is for you!

In Snow Leopard, you can ask for the computer's location. Without a GPS, how accurate could that be? The answer in my case is: very accurate. In this post, I'll show you how to write a CoreLocation app for the Mac that shows the current location in Google Maps, so you can see exactly where your computer thinks it is.

OpenMeta is an OS X Cocoa Objective - C tech (Leopard only) that allows any application to read and or write tags, ratings, etc to any file.

Cocoa Syntax Highlighting Framework for use in Mac OS X desktop applications. Depends on ParseKit http://parsekit.com

HTTP is one of the simpler protocols to implement for communication between computers. On the iPhone, since there are no APIs for data synchronization or file sharing, embedding an HTTP server is one of the best ways to transfer data from your iPhone application to a computer. In this post I'll show you how to write your own simple but extensible HTTP server. The server classes will also work on Mac OS X (Cocoa un-Touched).

Objective-C is the primary language used to write Mac software. If you're comfortable with basic object-oriented concepts and the C language, Objective-C will make a lot of sense. If you don't know C, you should read the C Tutorial first.

Pwitter is a simple and elegant Twitter client for Mac, that is written in Cocoa.

So that you can play along at home and test out the code samples in this article, we’ve created a simple web application, based on Ruby on Rails, that implements a RESTful web service. The first step is to download the web application named countries (.DMG, 600 KB). It is based on a simple, database of public domain data containing four fields: A country index, country name, gross domestic product, and two-character country abbreviation.

ChocTop packages and deploys any Cocoa application in a custom DMG, with generated Sparkle XML support.

Now with MacRuby, you can create Mac OS X applications with Ruby while maintaining the peformance benefits of a fully fledged Cocoa application.

how to build a basic Cocoa application using PyObjC and Xcode 3.0.

Cocoa Packet Analyzer is a native Mac OS X implementation of a network protocol analyzer and packet sniffer. It is able to do basic network capturing, filter packets, analyze and display pcap files. CPA uses libPCAP for reading packet trace files and for capturing network traffic (filter expressions from tcpdump may be used).