No. 9 Apple releases the iPhone 3GS: Apple has released three iterations of the iPhone since 2007, the most recent being the June 2009 release of the 3GS model. The 'S' in the moniker stands for speed, and that's exactly what the iPhone 3GS phone delivered. With a faster processor and twice the RAM as the iPhone 3G, the 3GS was noticeably faster at doing just about everything, from a graphics-intensive 3D game to Web browsing. The 3GS also beefed up the camera, added support for video recording and editing, added a digital compass and improved battery life.