Every version of iOS is a masterpiece of artistry and creativity that makes designers reconsider their design language, particularly in the field of technology.
A result of that is that when Apple began to remove curved user experiences from it's operating systems several design teams across the world saw this and followed suit.
Version 3.x of my website focused on the move from skeuomorphic things like my notepad style notes, box shadows everywhere and generally ugly interface to a much flatter interface. The interface was very square. This is how most flat interfaces start off. Apple's did, and back then square designs were in and curved ones were out. But slowly but surely Apple's own design language has changed to encourage the use of subtle curves into their operating system.
Well, you may or may not have noticed, some subtle curves have made their way into my website, and it all started with something as simple as my little quick alert box (try running a code sample of my website to see what I mean). You'll also have noticed that all the buttons on my website are curved too. This change is minor and fairly unlike the version 3.0 move from skeuomorphic elements to flat ones, but it's important and it's been received very well.