I doubt she’ll run.
She’s making millions of dollars being a commentator and you think she’ll give that up for a 10 percent chance at being president?
Not this presidential cycle. Possible that she might reconsider her position for something in 2016, but not 2012.
I find your lack of faith disturbing...
Seriously, if Palin announced that she was running, the whole race would turn around instantly. She's got far stronger drawing power than anyone currently running, and would run away with the nomination.
I'm not predicting that she will run, but she wouldn't be the first reluctant candidate to answer the call to duty when the roar became overwhelming. Eisenhower did.