It seems to me that now is the time for Obama to surge ahead, with some significant speeches, announcements and press. He just nailed the Democratic nomination, and that is indeed an accomplishment of historical dimensions. He should not be letting the media discuss this in a vacuum, which right now appears to be the case. He should grab control of it, right now, and not let the momentum from this slip away. A VP selection of historical dimensions would work -- if it was the right person (who would that be?)
If we go a couple more days without something really significant from the Obama camp, I will put it down as a truly missed opportunity.