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No its the 6th.
The first iPhone was known as the iPhone 2G (1st), then the iPhone 3g (2nd), then the iPhone 3GS(3rd), then the iPhone 4 (4th), then the iPhone 4S (5th) and finally the iPhone 5 which is the 6th.
TL:DR There was no iPhone 1.
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Why is that Nexus 7 in landscape mode on default home screen?
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