Hmm i remember reading about that in the news recently aswell. Im sure if that did happen then the other Commonwealth realms would follow suit sometime in the future. I doubt if any of the other countries would do anything until after the Queen dies though, because im sure Canada / Australia will hold referendums on becoming republics and probably win it after the Queen does die. I agree with the equal rights for male / females, the bit i dont understand is allowing a catholic to become monarch. How an earth could a catholic become the head of the Church of England. If the UK act is passed then it would be worth a mention on this page about the legal implications for the other commonwealth realms.