I found Libre Office after giving up on the Mac iLife apps. Great apps, but subject to the whims of Apple what goes and stays. I already have several files from years ago that I cannot access due to version changes. Going forward, I am looking for a non-apple substitute for pages, numbers and keynote.
Impress is great, but without the ability to generate a playable movie file, it is not worth the switch. Writer and Calc look very good, and completely suitable for my needs, but impress is not there yet. Any intrepid coders that can add .mov (h.264) output - I will buy you a virtual cold one!