In a early move Utah Gov. Jon Huntsman announced that he is behind Jon McCain for President in '08. The two have similarly moderate Republican views, but why so early on in the game?
My take on Huntsman's premature endorsement is this, he is a career politician/businessman and every new position he gets (i.e governor of Utah) is another stepping stone up the latter to the pinnacle of of his power goals. He will have served his first term as Governor, and that would be a good time to jump ship for a more prestigious position as either a member of a McCain cabinet, or (highly speculative) as a Vice-President. Huntsman, is betting on his horse now to gain favor with the man he sees conquering in the next presidential race.
His rejection of Romney is merely a verification that he sees Romney as being unelectable because of his Mormon roots. Which leads to another good question -- what are Huntsman's ultimate political goals? President? I wonder if he believes being associated with moderate McCain will relieve him of the stigma of being a Mormon politician.