How hard do you think it is to implement scrolling, the rubber band effect, and pinch-to-zoom on a display screen?
Answer: not hard at all. In fact, it has been trivial for years. The hard part is implementing it in a cost-effective, reliable manner — something that Apple did with industry-leading industrial design/manufacturing efforts, not through patented technologies. But that's not what this case was about.
If this case involved Samsung bribing Apple employees to reveal the secrets at the Foxconn plants in China, then I would completely agree with you that that is wrong and that Samsung has broken the law by stealing a competitive technology. But that's not what's happening here; ironically, Apple is deriving part of its competitive advantage from using Samsung!
What's happening here is that Apple is suing Samsung over silly, trivial, and peripheral issues that played a modest (if any) role in the iPhone's success, silly, trivial, and peripheral matters that, unfortunately, have been granted the strongest property right in American law, which is a monopoly of their direct or indirect use by anybody.