I did not see the interview you are talking about, but I have seen her talk policy before. And when I say talk, I mean spew non-sensical clich้s in response to every question. She may have a future in Alaskan politics, but she is done as a viable national political figure. I do find it funny how many people still can't get enough of her though. I wonder if that would be the case if she were 300 lbs and looked like Rosie?
I like her, she seems like a nice person with a good grounding... but she's done. I can see the question now:
"So you somehow managed to spin walking out on your elected state position as a responsible decision. Congrats to your PR people on a job well done. Now, what happens if your old enemies start suing you while you are president (or vice president, or senator, or whatever)? Can we assume that since quitting was the right decision before (and never mind all the money and books and stuff), will you quit again?"
One can assume that the answer will be full of spunk, completely non-sensical, and about as deep as a plastic kiddy pool. She's done.