Apple has been uncharacteristically quiet in 2013. The year is already one-third over, and we haven't heard any major announcements coming out of Cupertino. Well, Apple's own Worldwide Developers Conference (WWDC) is only two months away now, so rumors are finally surfacing about what's in store for Mac OS X 10.9. With better multi-monitor support, a tabbed user interface for the Finder, and a rebuilt web browser, this next operating system seems to be focused on the power user.