Interactive Lockscreen: seems like a miss. People with jailbroken iPhones or who have installed certain hacky third-party apps (eg, an app called "Lock Screen Weather") get an interactive lockscreen - otherwise the only thing from Apple that seems vaguely related is the "swipe up for photos" shortcut.
Social Network: Apple added "twitter integration" with iOS5, but you wouldn't notice that unless you use twitter. If you do, the main thing that changed was that you no longer have to log into twitter explicitly all the time, and there is a "tweet" option added to various app panels. It's not a particularly significant feature and it's questionable whether "copied from Android" is a fair characterization.
Of course, one could say the same thing about many of the things Apple is suing over.
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.)