At WWDC Apple covered a range of new features that will be coming to OS X Yosemite for the Mac. Craig Federighi gave special attention to the translucent appearance of windows and how they reflect light from the desktop. The overall brightness of the desktop can be changed to a dark mode for more subdued look and feel. Mail received some nice improvements, including the ability to annotate messages, and sign documents right inside the Mail application. Notifications will be enhanced with the inclusion of third party widgets that can be dragged into the notification bar and Safari has a cleaner look, providing the option to hide the favorites bar, accessing them in the search field in tile view. Tabbed browser windows can also be viewed in tile view in the form of stacks.
In general, we now have a more closer integration of OS X and iOS - what Apple calls "Continuity." You can now type messages on your Mac and transfer that message mid-stream to your iPad. The Mac can also make phone calls by connecting to a hotspot connection on your iPhone. And the most profound update was in the introduction of iCloud Drive which will enable us to connect to our stored documents in iCloud, including documents that are stored on your iOS devices. Check out the latest Blog Post to learn more about the keynote address.