Would be good if articles on the different projects were translations. Most of the time, although they are about the same subject, the articles are differents.
Not all inter-wiki links link to an article that is about the same subject. They sometimes link to a more general topic. My pet peeve example is the German Wikipedians insisting that [[en:Vulcan (Star Trek)]], [[en:Romulan]], [[en:Ferengi]] etc. don't deserve German equivalents, so they *all* link to [[de:Völker im Star-Trek-Universum]], which of course contains less than half of the information, but instead a huge patronising banner warning not to be so stupid as to think these fictitious things could have anything to do with the real world, much less that they could be welcome on Wikipedia.
Timwi