Hoi, I have written http://meta.wikimedia.org/wiki/Using_templates_in_Wiktionary to explain how the system with templates works in nl:wiktionary. I have written it now because of the GEMET data that will be copied in propably many wiktionaries.
The system described works. It is however a kludge to be used untill there is a better way of doing the things that are tried to achieve.
The article is particularly written for Sabine Cretella and Jimbo Wales. I promissed Jimbo last Saturday to try to explain it better.
Thanks, Gerard