Apple launched their new operating system recently.. Have you updated yet? See the above gif to visually represent how their operating systems have changed over the years.
Learn more about the design here
Thoughts? Personally, I love the more flattened look – feels crisp, clean and modern.
I stumbled on this new iPhone wallpaper and loved its simple, flat geometry. Happy downloading.
professorhopkins.com 
I like the way it looks. I downloaded it onto my 4s 32 gig on Wednesday. The only issue I am having is that the instant messaging is less fluid. But that’s the only problem I see. I like that they updated the camera to actually take square photos now (like every other camera app in the world). Overall it looks pretty cool.