“....or that Romney would drop and endorse Huckabee.”
You can’t be serious.
Why not? By the exit polls, the Huckabee voters will move to McCain in much greater numbers than to Romney. Are Romney's voters going to do the same? Without Huckabee in the mix yesterday, McCain would have 800 delegates rather than the under 700 he has at the moment (it is still going up for both him and Huckabee as the results are processed.)
Aside from that, I would trust Huckabee nominating judges far sooner than McCain or (shudder) Romney. The track records of those two are abysmal.