I think you're missing some context. In the case of that one feature if Apple HAD "copied from Android" it would probably have been better than what they actually did. What Apple did (in iOS 5) was integrate with ONE specific social network, Twitter, working directly with that company to accomplish this. What Android did if I understand correctly was make a general service available for sharing to things like social networks generally. I don't think Apple has (yet) copied that feature at all. (I could be wrong, because the parent poster's comment was vague, made in passing, and not since elaborated.)
I don't think it's questionable at all that Samsung copied its "trade dress" from Apple, just as it had earlier copied from Blackberry. Or that they explicitly copied lots of specific features from Apple.
(Though I agree that we might be better off with less protection against that sort of copying. The world would not be a better place if McDonald's had been able to patent the idea of a drive-through window (or buy the patent for it from someone else) and then charge all other fast-food restaurants an arbitrary fee to license the patent portfolio.)
I don't think it's questionable at all that Samsung copied its "trade dress" from Apple, just as it had earlier copied from Blackberry. Or that they explicitly copied lots of specific features from Apple.
(Though I agree that we might be better off with less protection against that sort of copying. The world would not be a better place if McDonald's had been able to patent the idea of a drive-through window (or buy the patent for it from someone else) and then charge all other fast-food restaurants an arbitrary fee to license the patent portfolio.)