[link|http://earth.google.com/download-earth.html|Download Google Earth]. Kubuntu defaults to placing "GoogleEarthLinux.bin" on the Desktop. To install it you need to do the following:
K -> System -> Konsole Terminal Program
cd Desktop
chmod +x G*.bin
./GoogleDesktopLinux.bin
I accepted the defaults and it installed and started right up.
Without [link|http://www.macewan.org/2006/06/12/how-to-install-google-earth-for-linux/|this HowTo] I wouldn't have figured it out, even though I knew it was an issue of marking the file as an executable rather than a data file.
Cheers,
Scott.
(Who will likely continue posting Kubuntu tips in this thread for newbies like me.)