My takeaway from Newt’s remarks are very different from Quin’s. They do make a certain amount of sense from the perspective of keeping alive anti-Romney sentiment, especially if he is preparing to endorse Rick Santorum (whom he did not attack). But the opening complaint about negative ads and press coverage, the swipes at Mitt Romney (who could be his party’s nominee) and Ron Paul, and the moments of petulance undermined the moments of grace. It was a stark reminder of the personality traits that led Republican voters to reject him in the first place.
UPDATE: Rick Perry’s concession is more to my taste.