I work for a school district and we are doing several iPad pilots. We manage our iPads using JAMF's Casper Suite (can't believe it hasn't been mentioned yet). Using Casper we have the ability to create mobile profiles for staff and students, send out remote commands, such as "Remote Lock", "Remote Wipe", "Remove Passcode". We can deploy in-house apps, as well as apps that have been downloaded/purchased from the AppStore. Casper keeps track of all of our purchase codes and assigns them to iPads as users request certain apps. By running "inventory" on the device, I can look up information such as available hd space, iOS version, installed apps, users, model, last IP, and much more.
I don't work for JAMF but I've been managing our Macs using their software for more than 5 years now.