Anybody remember Rangboom? Well see here: http://www.9netics.com/
Of course, the people behind this are on this list.Although it reads as a "who's who" among 9fans, their respective connections to industry are listed where applicable here:
http://www.cs.bell-labs.com/wiki/plan9/people/index.html Not guaranteed to be exhaustive, but a start nonetheless.That might be the closest thing to a Plan 9 real world application database.
-Jack
