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apple was created
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iphone 3G
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iphone 3GS
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iphone 4
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iphone 3G discontinued
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iphone 4S
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iphone 3GS discontinued
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iphone 5
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iphone 4s discontinued
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iphone 5C
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iphone 4 discontinued
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iphone 5S
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iphone 5
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iphone 5C
still continued -
iphone 5S
still continued