We got our hands on a prerelease version of Apple's latest big cat, Mac OS X Lion, and we're definitely excited about what we've seen so far. The new Mac OS isn't slated for release until this summer, but the early prerelease shows off many of the latest bells and whistles that Apple hopes will help you be more efficient on your Mac.

Several of the new features make navigating your system and software easier. The new Launchpad, accessed from an icon in the Dock, lays out your applications just as on an iOS device, making it easy to launch your favorite apps quickly. Another cool new feature is the addition of what Apple calls Mission Control, which lets you do a four-finger upward swipe to see all open applications, your desktop, and even applications open in Spaces.