I don't think Apple owns the patent on top down notifications, but Apple's going full sail into that arena. If Apple went after Google for multitouch, I could only imagine Google would go after Apple for notifications.
In terms of the OS, you're really stretching. That's nothing but a bunch of widgets running on the home screen. Apple furthermore doesn't own patents on square icons at the bottom nor does it own patents on grid layouts.
And how the hell are you going to design a candy bar cell phone without there being similarities? The backs of the phone look absolutely nothing (the back has Samsung stamped all over it) alike and there's two tactile buttons at the bottom next to the home screen button. Hell, the first Samsung Galaxy S not pictured has a gigantic stamp of SAMSUNG at the very top.
And yes, I suspect Apple would go after the manufacturers rather than Google. Which is what is happening as can be seen by such copyright infringement cells such as:
Hell, the first Samsung Galaxy S not pictured has a gigantic stamp of SAMSUNG at the very top. Apple is not suing Samsung on the appearance of any of the phones you so nicely cut and pasted in your comment... they are suing Samsung for the one I cut and paste in my original comment, the Galaxy SII, and others... as well as the Galaxy Tablet line. Here is another view of the Galaxy SII:
And whether the Galaxy S has Samsung emblazoned on it or not is irrelevant in a Tradedress lawsuit. Here is photo of the Galaxy S, right next to the iPhone 3Gs it was copied from:
And the VP of Samsung, in an oft quoted comment, which is being used against them in court, said, after seeing the iPad 2, "we are going to have to redesign" the Galaxy Tab 10... and they DID, recalling their already shipped to distribution heavier and thicker model, to make their's match the iPad 2's look... here's a side by side photo of the two:
So your, non sequitur photos of non-copied Samsung phones are irrelevant to the Apple v. Samsung lawsuit in Federal Court. These are... and are being litigated.