1) Weather - The similarities are that they both use white text over an image that somewhat represents current conditions. The alignment is different, and its not even presenting the same information.
2) Answer Call - They look the same because instead of a picture of a tree you have a picture of a person, that is not an IOS7 design change. The other similarity is that they squared off the buttons.
3) Multitasking cards - Pretty much the same, but they both took that from WebOS, mostly because its been recognized as the best way of presenting that information.
4) Lock screen - Almost identical to the IOS6 lock screen, but with the black backgrounds removed from the top and bottom. Completely different from the Windows Phone one except that the background images are similar, which again is a user selected thing, not the OS.
So these screenshots "prove" that Apple has copied the concept of designing a weather app with text over a picture (also known as how 90% of the weather apps currently in the app store work) and that they took the idea of multitasking cards from WebOS. Oh, and they made some buttons square instead of round.
The call comparison is bad -- the first one is when the phone is "unlocked" and the "new" one is when the phone is in a locked state. Also, the previous version would show a picture if you had a picture associated to the contact.
And, if anything, with weather, and in general iOS was the first mobile OS which allowed you to horizontally scroll through screens -- I feel that that is the bigger "design" element stolen than a particular font/color choice.
Let's not forget about the pinch to zoom, etc.
Lesson here? Everyone borrows from each other. But I don't think the examples here are that damning. I think iOS borrowed much more from android than WP7/8. (Look at the modal dialogs -- other than rounded corners, they're nearly identical to Android's)
AND Chris Miller got his dates wrong -- the multitasking in windows phone and iOS was stolen from WebOS -- which came out in 2009. Not 2011.