Please read for an updated status on RailsCasts:
Learn more or hide this
GitHub User: jcraigk
Nice screencast Ryan. I have a question though. It seems like this method allows selection of Country only once. Since the State dropdown gets reduced to only the matched states after a Country selection, if you select a new Country that has states, you've now lost the original list of states, so the States dropdown comes up blank. This means if a user makes a mistake selecting their Country, they would need to reload the page in order to undo that mistake. Please correct me if I'm just implementing this wrong.
Try Carmen https://github.com/jim/carmen