WWDC 2008 revisited: the four sessions still shaping iOS
WWDC 2008 was the year third-party iPhone development became possible. The SDK opened in March, the App Store opened in July, and Apple shipped four design-principle sessions that year that still describe the shape of every iOS app I write in 2026: 312 (the SDK runtime), 348 (the Cocoa philosophy), 940 (Obj-C 2.0 properties and protocols), and 382 (the GCD preview). Three of the four bets paid off in the form they were originally pitched. One had to be rewritten twice before it stuck.