When creating a new Cloud Service (using either the quick create or the custom create options in the portal) anytime the text "jud" appears within the name of the service, it reports that "The specified URL is already in use."
I'm fairly certain that "adspfqhwefasdf-jud-asdfpaiusdhfqewr" and many other long random junk names are not actually in use. I cannot find any name, no matter how simple or convoluted, that will allow me to use the character sequence "jud" when creating a Cloud Service.
BTW, creating a database with "jud" in the name worked properly, but I didn't go through the portal to do it...