http://meta.wikimedia.org/wiki/Interwiki_map

Notice;

The interwiki map, the defines to what things like [[wikt:Foobar]] point, is not updated for many months. I will make a BugZilla request to update it now Sunday.

That does not mean it will be updated, I will be surprised if it would, but you never know.

I would recommend to try to get the interwiki map additions on the talk page cleaned out by then in case the it does get updated as a responds to my bugzilla request to it.

Greetings, Walter -- Contact: walter AT wikizine DOT org Wikizine.org - news for and about the Wikimedia community