It already has, she beat it, pay attention.
If she runs, you will hear about it every day of the campaign, courtesy of the SRM.
If she runs she will have to deal with the question over and over. It will be phrased like this....
"Mrs. Palin, we know what it took to make you quit as governor, what would it take to get you to quit as POTUS?"
She handed any future opponent (from either party) this hammer on a plate; anybody who thinks that they will use it to beat her is dreaming.