Hoi,
The WikiData project is of real interest to me. It is very much the second coming of what is still a great idea. Providing an environment where in one central environment data is maintained. In essence data can be expressed in triples and with such a statement you get firmly into semantic web and into language technology.

The original Wikidata was about "solving" the issue that Wiktionary is doing the same thing over and over again. Consider, a word like "travel" is linked on 37 wiktionaries and in essence they all say that it is an English word, a verb and has a particular meaning with translations ... on a high level all this data is the same. 

When you look at a word like "Nederland" at OmegaWiki, you will agree that Amsterdam is the capital of my country and this can be expressed as a "triple" and all the two other elements in this triple can be translated. Check out the word, check it out in other languages (like Arabic or Russian or Dutch) and you will find the kind of functionality that will be a challenge for this new project.

Data projects, software projects have one big problem. They typically do not consider their use in other languages. They find it surprising that you can not really add all this language stuff in at a later time.

Wikidata will be used by Wikipedia and Wikipedia is at this moment only some 283 languages. Not one, not two and not fifty. There are over 7000 languages in the ISO-639-3...

<grin> I have been asked to be an advisor to this project and I accepted </grin> An advisor advises and my advise is to make WikiData II a tools for all our projects from the start. At OmegaWiki we learned a lot and we LOVE to share our knowledge with you.
Thanks,
     GerardM

http://en.wiktionary.org/wiki/travel
http://www.omegawiki.org/Expression:Nederland