Steve Jobs

Tim Cook's first launch as CEO kept the iPhone 4 design and added the dual-core A5, an 8-megapixel camera with 1080p video, and Siri, the voice assistant Apple had acquired in 2010, alongside iOS 5 and iCloud. Steve Jobs died the following day, October 5, 2011.

Apple's board announced that Steve Jobs had resigned as chief executive and named Tim Cook, then chief operating officer, as CEO with immediate effect. Jobs became chairman and Cook joined the board. Art Levinson, speaking for the board, said Jobs had recommended the board implement its succession plan.

The fourth iPhone introduced the 960-by-640 Retina display, front-facing camera and FaceTime video calling, Apple's first in-house A4 processor, a gyroscope and a stainless-steel band design that also served as the antenna. Complaints about signal loss when the band was gripped, dubbed Antennagate, led Apple to offer free cases in July.

At WWDC 2008 Apple introduced the iPhone 3G with faster networking, built-in GPS and the iPhone 2.0 software that opened the App Store to third-party apps. Carrier subsidies cut the US price to $199 for 8GB, and the phone launched in 22 countries on July 11 with more than 70 planned by year end, selling a million units in its first weekend.

At Macworld San Francisco, Apple introduced the original iPhone, a 3.5-inch multi-touch device with no physical keyboard, running a version of OS X, on a 2G EDGE network and exclusive to Cingular (soon AT&T) in the US. Pricing was set at $499 for 4GB and $599 for 8GB with a two-year contract, with shipping promised for June.