I have been saying it for weeks - do not count out Newt Gingrich. And, this morning's Washington Post, after some snarkiness about Gingrich's hawking his, and his wife's books, notes that he has recently, as a result of Perry's tanking, been the beneficiary of a rise in the polls, something that say, Mitt Romney can't claim.
Gingrich is smarter than the others on the stage, possibly smart them all of them put together. Conservatives can love him in a way they can't love Romney. Mainstreamers can allow that he is not a loon. He may only be everyone's second choice at the moment, but given the make-up of the field, and the ideological divisions within the GOP electorate, that may be the best place to be right now.