> Dotcom, dotnet, dotorg... as well as all those .ninja and .guru domain extensions -- they're gTLDs, bound by ICANN rules. That is to say, they won't be allowed to register Emoji Domains until some international body yields to the march of progress.
While this might change in the future, for now, ICANN, the governing body of internet domain names, has banned the practice.
Apparently, while they allow all kinds of weird unicode characters in domain names, they don't think emoji are a valid form of communication.