At Apple's WWDC14 developer conference today, Apple announced its new version of Mac OS, codenamed "Yosemite". As well as increasing the number of hits to the Yosemite National Park wikipedia page, this new version harmonises the look and feel between iOS and MacOS.
I'm guessing that many will have the same reaction that I am having-- and indeed that many of us had when we first saw the new-look iOS-- i.e. something to the effect of "OK, but please can we turn that off?". I guess over time, the world will get used to it just as we did with iOS... :)