Since the iPhone’s launch, each year has brought us two things. A new iPhone model and a new dot-zero version of Apple’s mobile operating system which runs it. The iPhone 3G came along side the 2.0, the iPhone 3GS had the 3.0 operating system, and the iPhone 4 includes the fourth generation operating system, now called iOS.
iOS4 became available on Monday, June 21, 2010 and is a free update to the iPhone and for the first time the iPod Touch. With the 3.0 OS we saw features new included that were not compatible with older hardware, and iOS 4 is no different. In fact, users with first generation devices will find that iOS 4 is incompatible. While Apple’s iPad runs the same OS as the iPhone and iPod Touch, Apple has delayed iOS 4 for the iPad until later this year.
With iOS 4 launching a few days before the iPhone 4 we are going to take a look at it on an iPhone 3GS, the most current hardware at the time the OS was released. Since there are some features of the OS that are specific to the iPhone 4’s hardware, we will take a look at that when the iPhone 4 is available.