I downloaded Office Mix a while ago, but I did not really play around with it too much. I should have. While still technically in preview mode, Mix is an add-in to Microsoft PowerPoint, that gives the ability to make PowerPoint presentations quickly and easily.
Whereas sometimes my experience with PowerPoint is that it could be a “black hole of time”, with Mix I found it very easy to make interactive presentations with a minimal amount of time. Below is a little introduction to Mix.