Comment 9 for bug 628015

Included in the tarball are the 246 iso country coded "flag" icons for the keyboard indicator in 22px size for a dark panel background. Each of these flags consists of a box with the two letters of the iso code inside.

By untarring this archive into ~/.icons/ should create a folder called flags containing all of the files.

Next run in the terminal;

gconftool-2 --type boolean --set /desktop/gnome/peripherals/keyboard/indicator/showFlags "True"

Which will enable keyboard indicator flags