At their special live event this morning, Apple made a number of exciting announcements regarding the next Mac operating system, the next generation of iPads, and the highly anticipated new Mac Pro desktop computer. After taking an extended moment to remind everyone just how great the iPhone 5s and iPhone 5c are doing after their initial launch last month and just how much we all love them, not to mention the new iOS 7 operating system, Apple got right down to everything we were hoping to hear, and then some.The first real announcement of the morning came in the form of OS X Mavericks, Apple's tenth operating system for desktop computers. Big improvements to the new OS will include better power efficiency, an enhanced system memory, and integrated graphics that are more fully optimized for the platform. Compressed memory in OS X Mavericks will now allow users to run more applications at the same time than ever before without experiencing a slowdown, while the new memory will give users an extra hour of internet browsing and an hour-and-a-half of watching iTunes movies on a single charge."A new map app and iBooks will also be debuting alongside OS X Mavericks, in addition to a highly refined implementation of system notifications. But Apple is doing more than just upping the desktop operating system to sophisticated new levels, as they're also taking aim at revolutionizing pricing. And to prove that point, Apple has announced that OS X Mavericks will be available completely for free to all Mac desktop users, whether they are currently running last year's Mountain Lion operating system, or even as far back as Snow Leopard. In a single-step update, all users will be able to upgrade to OS X Mavericks starting today.