Joe Trippi just posted to his new blog that he felt obligated to inform Dean supporters who were working on electing Dean delegates in upcoming primaries that they are unlikely to succeed (Vermont being an exception).
http://www.changeforamerica.com
Joe writes that it's fine to try to elect Dean delegates, but not to be disappointed when Dean only gets 3-8% of the vote (15% is needed to elect delegates) given he's not actively campaigning.
This sounds pretty similar to the Geto memo in New York state in terms of discouraging a Delegate campaign.