don't you guys remember when Apple's strategy was designing products making decisions for customers, giving them what they really wanted?
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And also, back in those days Apple was setting the trend, not Samsung.
The larger display trend was started by the HTC HD2 and then the Dell Streak well before Samsung.
But about Apple not giving users choice in sizes, that's simply a myth:



With the iPad mini, the iPhone is now the only major product without a multiple line up other than older models.