The document compares and contrasts the iOS, Android, and WebOS operating systems. It discusses that iOS runs on Apple devices and uses Objective-C, while Android is used by many manufacturers and allows third-party apps. It lists reasons why Android and iOS are each considered the best, such as Android having SD card support and better notifications while iOS has a more intuitive interface and larger app selection. The document concludes by looking at usage reports for the different operating systems and making predictions about their future.