Prolific author Bob “Dr. Mac” LeVitus talks about Microsoft's woes, and gives you a preview of the best (and worst) features of OS 10.8 Mountain Lion. Author and commentator Ted Landau discusses some of the problems with Apple's Mac App Store, including the limitations of sandboxing, the inability to get demo software or discounted app upgrades. From Jim Galbraith, the Lab Director of Macworld, you'll get the latest and greatest benchmarks of Apple's recent MacBook upgrades, including the MacBook Pro with Retina display. Is it time to retire your old Mac notebook?