It seems to me that so much of the "Hillary big comeback" talk is based on recent polls showing a close race, or Obama up by a little.  It's clear that polls in this primary season have been wildly off mark and not worth the money put into them.  If no polls had been taken the last two weeks, the news might've actually been "Obama moves closer to nomination with closer than expected primaries in TX and OH".  Hillary has succeeded in the expectations game, not the delegate game.
Also, is there any way to get the pundits to stop heralding the imminent  demise of the Clinton candidacy?  It's seems that many of the late breakers are going to her simply to extend the race.