When Apple introduced the iPhone back in 2007, it forever changed the smartphone industry. Since then we have seen 4 upgrades of the original iPhone, and the newest version to be released, the iPhone 4s, is definitely the best version yet. The iPhone 4s physically resembles its predecessor, the iPhone 4, but inside the user will discover a host of software and hardware updates. The most impressive update is the iPhone’s new personal assistant: Siri. This voice recognition system essentially serves as a personal secretary, with the ability to perform tasks such as answering questions and making recommendations. The 4s also features a new dual-core A5 chip processor, allowing for up to two times more power, seven times faster graphics, and longer battery life than its predecessor. These impressive updates, however, barely scratch the surface of Apple’s new smartphone. The iPhone 4s features the i OS operating system, arguably the world’s most advanced mobile user interface. Included in the new iPhone is an app called iCloud, which wirelessly integrates all of the user’s music, photos, apps, mail, contacts, calendars, documents, and more. An enhanced camera, improved retina display, the ability to print wirelessly from your iPhone, and video display in amazing 1080p HD recording are just some of the features that round out Apple’s amazing new iPhone 4s.