Also, it's interesting that his announcement isn't that he's ending his campaign, but merely suspending it. I understand this is because if the campaign is suspended, he can still accept donations--that's swell, but I think even his die-hard supporters should be catching a clue: Cain already tried Plan A, running for President. He is now prepared to do the important business of Plan B:
As political speeches go, once he got past the "suspending his campaign" part, the whole "uniting the United States" and "putting the shining city on a hill back up the top of the hill" stuff seemed pretty flat, like he was just stringing cliches together at that point.
What a not-particularly long, but definitely strange trip the Cain Train has been!