Who copied whom in the Apple-Samsung battle?

An article in The Chosun Ilbo today reinforces the argument I made in an earlier post about the design limitations for smart phones, given that they all contain a screen, an antenna, certain chips and so forth.  There are limits to what you can do with design, given that the final product must contain many of the same parts.
The most fascinating part of the article was the revelation, according to documents made public by the U.S. court, that Apple consulted mobile phone designs of Samsung Electronics and LG Electronics before it unveiled the iPhone in January of 2007!  The internal Apple document contained the accompanying diagram (click to see a full size version) comparing the iPhone to a Samsung Ultra Smart model.  So who copied whom?