Let's turn to our wise friend Macalope[1] and hear what s/he said just last week:

    Samsung wasn’t copying Apple, it’s just that smartphones naturally evolve into 
    flat touchscreens with minimal buttons on the front and slide to unlock and 
    a virtual keyboard and an Apple logo on the back and oops we went too far.

[1]: http://www.macworld.com/article/1168385/macalope_the_sincere...