Here are the official rules in Maine.
* 6 district delegates are elected by caucus participants from each of Maine’s 2 Congressional districts. These delegates will attend the Republican National Convention officially “Unpledged”. [The Rules of the Maine Republican Party as Adopted at Convention on May 5, 2006. Rule 32-A.]
o CD 1: 3
o CD 2: 3
* 12 delegates are elected by the Maine State Convention as a whole. These delegates will attend the Republican National Convention officially “Unpledged”.
* 3 party leaders, the National Committeeman, the National Committeewoman, and the chairman of the Maine’s Republican Party, will attend the convention as unpledged delegates by virtue of their position.
If Romney wins by 30% like he’s leading, the 18 elected delegates will be his supporters. the 3 party leader delegates is more of an unknown, but given his margin of victory are likely (but not guaranteed) to be be for him as well.
McCain-97
Romney-74
Huckabee-29
Paul-6
Assuming Romney gets the 21 from Maine, he will be at 95. Had Romney and McCain been reversed, Maine would be getting coverage by every network and every other pundit would be calling it a "surge" by McCain.