OS X 10.9, the next major revision to Apple's operating system for Macs internally codenamed 'Cabernet', is up for introduction later this year, according to a well-informed writer. Specifically, Apple is apparently bringing more of core iOS features to its desktop operating system.
This entails stuff like iOS style multitasking that should prove functional by allowing background tasks to pause like on the iPhone and iPad. Finder, the Mac's long-standing default file manager, is understood to gain power features such as tabbed browsing modes and tags.
An enhanced Safari browser is thought to include a redesigned backend for improved page loading, speed and efficiency, which reminds us a lot of Turbo browsing mode from the Opera mini browser...