It appears that Romney is the only hold out. I thought that they might cave. In fact, a week ago I was going to post the question: How long before the candidates cave and allow CNN to embarrass them with really stupid questions?

This just in: The Republican CNN/YouTube debate, in limbo for the past few weeks, is on again.
But Mitt Romney, who won Saturday’s Iowa straw poll and has criticized the debate format, has yet to commit to the Nov. 28 event.
Romney, the lone GOP holdout, has posted more videos on his YouTube channel (283 as of Sunday afternoon) than any other presidential candidate, Republican or Democrat. But he has resisted the debate, in which videotaped questions are submitted through YouTube. In an interview with Manchester Union Leader, Romney said, “I think the presidency ought to be held at a higher level than having to answer questions from a snowman.”
That drew a video response from Billiam, the snowman who questioned the Democrats on global warming last month in their YouTube debate. This time, he riffed on another Romney quote from the campaign: “Lighten up slightly.”