It's not the Republicans that will take advantage of the Wright revelations because they'll never get a chance to.
Hillary and Team Clinton will. And they'll use it BEFORE the convention to get delegates committed to Obama to change their minds. This thing is so huge that Team Clinton will use it in any way they can not to let Obama be the candidate and expose himself to this during a presidential election campaign. This is the tool that the Clintons can use to peddle their influence in every way possible to unseat Obama AND not be accused of being usurpers. This is the tool that the Clintons can use to instill the fear of God into all levels of the party...from Super Delegates to Howard Dean. It's over for Obama.