I'm in the UK and have 8.1, don't want to do dp because my 920 is my daily driver and I don't want to mess around with it too much. Jus wondered if there were any downsides to switching the region to US to get Cortana? I don't want to mess up any of my email accounts/wp ms account. I know that's really paranoid but I'm just that kinda guy :-D.