For clarification, I ran these commands on Ubuntu Karmic Koala 9.10 and it 
did install Chromium:

sudo apt-key adv --recv-keys --keyserver keyserver.ubuntu.com 4E5E17B5
sudo add-apt-repository ppa:chromium-daily
sudo apt-get update
sudo apt-get install chromium-browser chromium-codecs-ffmpeg-nonfree

I ran the command "chromium-browser" and it launched properly, prompted 
about importing Firefox settings, and so on.  It's looking good.

Thanks, everybody.

Mike