Posted by Andrew.
Google Chrome is only released for Windows platform(Windows XP/Vista/7). For other platforms it is still in development stage. There is a development build available at Chrome Dev Channel.
Note: Installing Google Chrome will add the Google repository so your system will automatically keep Chrome up to date. If you don't want Google's repository, do "sudo touch /etc/default/google-chrome" before installing the package.
Remember, Dev channel browsers may still crash frequently. See bug-reporting-guidlines-for-the-mac-linux-builds before reporting problems in Mac or Linux Dev channel builds.