With the many updates and new features announced for the upcoming OS X release of Mountain Lion, one may have slipped by, but it's an important feature. It's also likely to become controversial. Gatekeeper gives users some extra security when running third party software. Apple says Gatekeeper will help prevent users from "unknowingly downloading and installing malicious software." The system preference has three levels of security. One only allows you to install apps from the Mac App Store. A second level allows installation of apps from what Apple calls "identified developers." Apple is starting up a program that basically allows developers to have digital signing of their apps. The lo
