Google Reader for UMN : it's here! I talked with a Google Implementation Team member, and he told me that they flipped the switch last Thursday. When you're logged in (http://google.umn.edu), you'll see in the bar at the top your usual options: Mail, Calendar, Docs, etc. Go to "More". Not everything on this page is actually activated at the U, but scroll down to the "Social" section (third section from the bottom) and click on Reader.
The person I talked to didn't have any tips about migrating your RSS subscriptions from your personal account, and he also stressed that support questions for Reader should go to Google and its support forums, not email@example.com. At the moment, they are only supporting the core apps: mail, calendar, docs, sites, and contacts.
There's a group called "ITLA" that reviews requests for new apps and changes to apps every month. The requests they have received include FeedBurner, Picasa, Google Labs for Gmail, and Google Groups, among others.
That's as much as I learned yesterday. I'll keep you all apprised if I hear more.