Apple have been in the phone market since mid-2007 and seen huge success with their iPhones. Established in April 1976, the Cupertino-based company have had rising and falling success, with Macs and iPods, but it was the iPhone that catapulted them into the mainstream to become one of the biggest mobile phone manufacturers in the world. Apple have achievied success with, the iPhone 4, which now comes in both black and white variants. The Apple iPhone 4S improves upon the iPhone 4 in a number of key areas. Improved camera is the stand-out feature, bumped up to an 8MP shooter, with improved optics for a clearer image, and an improved flash for better low-level light conditions.