I'm applying to darden in the fall, but am registered for the darden blog update. I received an update this morning saying darden would offer a 15 minute feedback session for individuals who will be reapplying.
Also, when I visited duke earlier in the year the adcom was very gracious and honest and stated that if you shoot them an email or a call they would be inclined to give you a quick synopsis of why the decision was made. This was in response to a question from a wait lister, but it doesn't hurt to try especially if you might be reapplying. Posted from GMAT ToolKit