The document summarizes the history of iOS, beginning with the debut of the original iPhone in 2007 which sold 0.27 million units in its first quarter. It describes how Steve Jobs originally marketed the iPhone's capabilities using web apps and widgets before the App Store was introduced in 2008. The document contrasts early iPhone models with only a 3.5" screen and 2MP camera to current iOS devices with larger high-resolution screens, faster processors and hundreds of thousands of apps available on the App Store.