'It's also the showcase handset for Apple's newest operating system, iOS 4, which adds a selection of long-overdue features, plus a selection of smaller tweaks that we weren't expecting. '
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'Overhauled iOS 4 .'
'Moreover, in our experience, unlike plastic, glass screens are essentially scratch proof in normal use so using glass on the back as well will hopefully mean the iPhone 4 will look flawless for years to come, no matter how rough you treat it. '
'You'll also be able to redeem iTunes gift cards on the phone in the iTunes App store.'
'The 320-by-480-pixel screen is slightly brighter, with a little more shadow detail.'
'Given that Apple has seriously beefed up the hardware inside the iPhone 3G S, it’s quite a feat that it has the exact measurements as the 3G.'