I happened to be looking at the proposed Q3 goals yesterday, currently they say:

My concern is that our current user satisfaction metric suggests 15% of users are happy with the results they are getting. This is really bad. I would prefer to see us focus on search relevance and improving the scoring of what we already have before spending more focus on interwiki search. I don't have anything to point to yet, but for search satisfaction to be so low I don't think that's because we arn't surfacing content from other wiki's, I think its because when you search for something we surface all kinds of results that aren't nearly as relevant as other data we have in the corpus.

I really want to see us focus on fixing what we already have and validating the features we already support before we go whole hog on incorperating all kinds of new data.

Erik B.