iOS 7 is defined by thin text and lots of white space, and the OS X Mavericks artwork closely matches that aesthetic.
However, Mavericks doesn’t bring a sweeping UI overhaul to OS X. While iBooks, Maps and a handful of other new features are being added with this release, the big changes coming to OS X this fall are under the hood.
To get an idea of what OS X (10.10? 11?) might look like with an iOS 7-inspired redesign, look no further than Rdio’s Mac app. The Rdio app on iOS is one of the most iOS 7-like app out there right now.