Several users have kindly alerted me to the fact that CPO really needs to support multiple countries, currencies, time zones and other standard internationalization features. In retrospect, I knew from the word 'go' that this would be an issue. No self-respecting developer builds a web app without the rest of the world in mind. So shame on me for not addressing this issue early on - but I was always too involved in getting the core feature set in place and stable.
So, without further delay, I will begin incorporating other countries, currencies and time zones into CPO within the next 2-3 days. I've already managed to address some UTF-8 character support issues and there's even some talk of providing the application in Spanish and French by summer.
If you wish to help with translation into other languages, please give me a holler.
Thanks for reading.