Not sure it is cheesey, but it might be fun to watch the annointed one stammer and stutter.
Don’t forget that Obama might have access to some of McCain’s campaign secrets [stolen laptop]. If BO is tipped off, such a move could backfire if BO has some way of ‘facing’ him [even if it’s based on deception].
So perhaps it would be better if Palin talks about the Birth Certificate, or a 527 ad.
Second point: come out with this too soon, and Hillary might step in. I’ve been asking about ballot deadlines in each state. So far, no one’s had a ready answer. McCain would need to factor in the ballot deadline so anyone replacing Obama would need a write-in vote.