Apple last allowed public testing of a pre-release OS 14 years ago, but now it's letting OS X 10.10 out for an early spin.
The latest version of the software dumps a Windows-like interface for a Mac-style desktop.
Apple's claim of revolutionizing pricing with OS X Mavericks isn't quite as revolutionary as claimed. The new-age "One Microsoft" is already laying the groundwork for free Windows upgrades.
All the desktop operating systems are integrating mobile features, but they're using very different methods.
Now available with 12 months of support, this software lets Windows apps run on other platforms.
Apple on Wednesday released Mac OS X 10.8.2, with Facebook integration and numerous other improvements.