At the moment, there are approximately four iPhone model generations that have been accompanied by four major IOS releases. Each release has embraced more features in terms of storage capacity, installable applications, visual and audio media and the camera capabilities. However, the original Iphone has shaped the screen size and keyboard placement which has persisted throughout in the later models. The old iPhone 3G has 3G network capabilities as well as A-GPS location. A compass, higher resolution camera for photos and video and faster processor were integrated in the iPhone 3GS model. The coming of the iPhone 4 introduced better features. The device has higher resolution display and dual cameras which can be used for face time video calling. The user interface is enhanced with graphical features to demonstrate the functionalities that can be achieved.
Now, one can see why this phone can be in high demand when it launched first on the network of AT&T, then Verizon and last but not lease Sprint. This created pandemonium in many stores... [continues]
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