No idea what the actual OS will look like in terms of UI elements, but based on what Apple has been doing recently in terms of icons for OS X, I think I have a pretty good idea of what we can expect. For example, in iOS 7, Apple leaked its own updated iTunes icon for OS X: http://forums.macrumors.com/showthread.php?t=1646617 Then in Mavericks the iBooks icon introduced a new style of icon, similar to the iTunes and App Store icons - but 'flat' (see attached) And more recently, its OS X Beta Seed Program sees a similar design going on, with the clickable button on the page being completely flat (just an outline), a trend that Apple has been moving towards in OSX over the past couple of years. If this is anything to go by, what do you think of the design trend Apple is going for with OSX? I think it's similar to iOS7, but could potentially be better than it. I know some people will be annoyed if they go down the uniform 'all circular' icon route, but personally I don't really have a problem with it -- and as you can see, I've changed my dock to this style of icon using personalised icons I've made. Then again, the new icons for iWork suggest different. I dunno, what do you guys think?