We were thinking along the same lines but I like the way you put it—who would have standing? Anyone?
There would be NO problem with standing if this action were taken by the United States Department of Justice.
But, given the hate in the Obamanation for the Bush administration, imagine what would happen if the government stepped in. Never happen.
I frankly do not see any reason for denying standing to a citizen asking for enforcement of constitutional requirements and the verification thereof BEFORE the election. The harm comes in potentially wasting a vote on an ineligible candidate. It seems obvious as sunshine to me.