IMAP - Internet Message Access Protocol: An application-layer Internet protocol that allows a local client to access email on a remote server.
Installer - A program on jailbroken iPhones that installs third-party programs. Installer also catalogues the latest third-party phones for jailbroken phones.
iOS (known as iPhone OS prior to June 2010) - is Apple's mobile operating system. Originally developed for the iPhone, it has since been extended to support other Apple devices such as the iPod touch, iPad and Apple TV.
iPhone - The iPhone is Apple's first Internet-enabled smartphone. It combines the features of a mobile phone, wireless Internet device, and iPod into one package.
iPhone 4 - The iPhone 4 is visibly different from its predecessors, in that it's got a more square shape, a microSIM slot on its side, and circular volume buttons on the left.
iPod Touch - (stylized, trademarked, and marketed as lowercase iPod touch; also commonly known as the iTouch) is aportable media player, personal digital assistant, Handheld game console, and Wi-Fi mobile platform designed and marketed byApple Inc.
iPad - is a line of tablet computers designed, developed and marketed by Apple Inc.primarily as a platform for audio-visual media including books, periodicals, movies, music, games, and web content.
iTunes - is a free application for your Mac or PC that organises and plays your digital music and video on your computer. It syncs all your media with your iPod, iPhone, and Apple TV. And it's a store on your computer, iPod touch, iPhone, and Apple TV that has everything you need to be entertained. To activate your iPhone, you need to install the latest versions of iTunes and follow the on-screen prompts.