Heard something interesting this morning on the MSNBC post-mortem:
Exit polling in Ohio and Texas indicated that a majority of Democratic voters there believe that superdelegates should support the candidate who wins the popular vote. Hillary Clinton has a shot at pulling that off, so presumably her camp likes that idea. By contrast, according to one of Obama's superdelegates this morning, Obama's camp wants superdelegates voting in accord with the delegate count, not the popular vote.
It may be moot if Obama goes into the convention with both the popular vote and the delegate count. Otherwise--wow, this could get messy.