I've been talking to a few Uni of Nbi guys lately ... and apparently they now have a dorm LAN going. With internet access too - they've tapped into some free ports into the universities' main network, and expanded it using switches - the usual model as the rest.
So far estimates of users is between 50 to 100. Mostly using it for internet applications ... not many local apps apart from LAN Talk for chatting. It needs to grow a lot ... if any of you is reading - skunkworks would love to talk through getting more content/apps hosted on the network.
Their estimates of number of PCs on campus checks out too - 70% of uni students have their own computers.