They've started adding a category to the GOP primary results labeled, "WITHOUT McCAIN." (See question 2.) Now, to those of you who don't spend all your days reading polls like this, the "without" breakdowns are usually reserved for candidates who probably won't be in the race, such as "without Gingrich," "without Rice," etc. This, as far as I know, is the first instance of a major polling organization starting to look publicly at a race without John McCain.
Matt Welch's article that started the cart speeding downhill is here.