South Carolina to Move Up Primary

What is next? I can see it now:

SOUTH DAKOTA, MONTANA, NEW MEXICO ALL CHANGE PRIMARY RULES. JUNE 3, 2008 PRIMARY VOTE WILL BE FOR 2012 PRESIDENTIAL PRIMARY
Three states decide to replace traditional 'last in nation' primaries with 'first in nation' ones....
--I mean if the nomination is already decided by then, why not get a head start on the NEXT election season?