Thanks, TRG, for the linkie.
Here's a bit more from the same source:
"I can see a unanimous Court (en banc) decertifying the election if Obama refuses to produce his birth certificate," says Raymond S. Kraft, an attorney and writer. "They cannot do otherwise without abandoning all credibility as guardians of the Constitution. Even the most liberal justices, however loathe they may to do this, still consider themselves guardians of the Constitution. The Court is very jealous of its power - even over presidents, even over presidents-elect."
So Kraft is saying that SCOTUS can (and presumably would) "decertify" the election unanimously.
That would also mean, again presumably, that SCOTUS would decertify the election even if the Electoral College convenes on 13 Dec and casts their ballots on 15 Dec.
This is going to be very, VERY interesting.