Khanna said Microsoft is trying to ease that workload by building some of the changes into the application programming interfaces (API) so developers can write to the APIs instead of building the coding into the applications.

CNN: graphic

The application provides an incomparable user experience with respect to ease-of-use, responsiveness, performance and quality.

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We particularly liked the ease of use of Keynote's chart and table tools, which work within the application, and its transition effects, both for moving between slides and for introducing elements within an individual slide--though overuse may eventually make us as tired of Keynote's revolving cube transitions as we are of PowerPoint's wipes.

FORBES: Keynote Vs. PowerPoint