First off, the reason I know that Devry (a private university with 100k students ) are running an iPad pilot is because while I was at the ALA Conference, I bumped into the woman who runs it. She couldn't give me details about the iPad pilot, unfortunately. That's understandable. DeVry are a private corporation and the information is proprietary. But since the Devry Kindle pilot covered 3k students with Kindles, the iPad pilot will probably be pretty big (3k, no; 1k, maybe).
Campus Technology are reporting that OSU will run an iPad pilot this fall.
Oklahoma State University plans to run an Apple iPad project during the fall 2010 semester to research the use of the tablet device in a classroom setting. The initiative will integrate the iPad into classes led by two faculty members, one in the school of journalism and broadcasting and the other in the school of business. The experiment will involve about 125 students at two campuses, the main campus in Stillwater and the other in Tulsa. Each class will integrate the iPad differently but will focus on specific measurable outcomes.