Mountain Lion, a.k.a. OS X 10.8, marries the Apple desktop operating system to iOS features that previously were found only on the iPhone and iPad. Among them: Messages, Notifications, Reminders, a Game Center, and better integration with iCloud. It's not a revolutionary upgrade to the desktop OS, but it should please Mac enterprise users.
With malware uppermost in the minds of many users these days, Apple is instituting new safeguards that currently are being referred to as Gate Keeper. For one, Apple is requiring that all developers "sandbox" their applications, thereby limiting access to memory, file handles, and other parts of a system. Apple also is giving users the ability to identify where their apps are coming from. Your choices are the Mac App Store or any Internet source, though the latter has the potential to open your system up to malware. User apps also are required to ask specifically for your permission to access personal information such as your contacts or calendar.
If this sounds too restrictive--but you don't want every app in the world running on your system, either--there's a third option: you can allow apps from the App Store and also those signed with a third-party Developer ID. The tracking system for the latter isn't finished yet but details should arrive with the final release of Mountain Lion.
You set up Gate Keeper under Security & Privacy in System Preferences. There isn't anything that specifically calls out the feature as Gate Keeper, something that might change.
Clicking the Advanced button on the Security & Privacy screen brings up additional options to keep your PC safe.
If you don't have the Mac Firewall turned on, you should probably take a moment and flip the switch. It's an extra piece of safety that might protect your PC from outside attacks.
Google in the Enterprise SurveyThere's no doubt Google has made headway into businesses: Just 28 percent discourage or ban use of its productivity products, and 69 percent cite Google Apps' good or excellent mobility. But progress could still stall: 59 percent of nonusers distrust the security of Google's cloud. Its data privacy is an open question, and 37 percent worry about integration.