I\'d like to learn how to write application for Mac OS X.
Like how to use XCode properly, Cocoa syntaxes and examples, etc.
I\'m already a web developer usin
Stanford recently put out a course on iTunes U that teaches you how to program on the iPhone. Because the iPhone uses the same programming language as OSX, a lot of what they talk about can be transferred to Mac app development. Best of all, the course is free to download and watch, and has a bunch of sample material that goes along with it. Click the link below to open it in iTunes.
iPhone Application Programming