Via Rumproast, Zandar, and The Hill, there's thisabout 2012, from The Fix at The Washington Post:

An astute Fixista flagged a fascinating interview that former Alaska Gov. Sarah Palin gave to conservative talk radio host Lars Larson last Friday in which she appears to leave the door open to a third party bid for president in 2012. Asked by Larson whether she would consider running as a third party candidate, Palin said: "That depends on how things go in the next couple of years." Larson told the 2008 vice presidential nominee that answer "sounds like a yes" to which she responded: "If the Republican party gets back to that [conservative] base, I think our party is going to be stronger and there's not going to be a need for a third party, but I'll play that by ear in these coming months, coming years." Which, to the Fix's delicate ears, sounds like Palin leaving the door wide open....

I don't see this happening.