Microsoft’s Ribbon is a core user interface element in all of the Office programs. PowerPoint for Mac 2011 remedies many of my complaints by combining compelling new features with a revamped interface that makes it easier than before to develop dazzling presentations quickly. But I was disappointed that PowerPoint 2008 ( ), the last major upgrade, missed opportunities to leapfrog Keynote ( ), Apple’s homegrown slideshow software. Although it’s never been the dominant program in Microsoft’s Office suite, PowerPoint for Mac has enjoyed considerable success riding on the coattails of its Windows counterpart.