Even on CNN.com they have it written that he was given the award based on the aura of hope that has arisen in areas just by him winning the presidency. While I do not disagree with that point... one would think that the prize would be based more on what he does once in office. I would think that you could consider him a candidate after a few years of being president, depending of course on what he accomplishes, but not ahead of the fact.
So it seems a bit silly to me, but what do I know.