Office "productivity" software and presentations
"The company[Microsoft] now holds more than 90 percent of the global market in office productivity software." from Boston.com
I have never seen someone less productive than with using MS Office/OpenOffice.org. This includes me, who has had the misfortune to have to try and use Impress twice in the last year, both times for talks I gave.
In other news, I would like to thanks the developers of Pointless for making my presentation on Ubuntu at my local LUG last night possible. It went well, despite a few X issues.