Regardless of your opinion on polling techniques, check out this interesting Gallup poll.
According to the poll, only 26% of Republicans and Republican-leaning independents are actually committed to a candidate. That's pretty low.
Of those who ARE committed, it's pretty evenly split:
Rudy Giuliani 5%
Mitt Romney 5%
Fred Thompson 4%
Mike Huckabee 4%
Ron Paul 3%
John McCain 2%
Duncan Hunter 1%
Tom Tancredo 1%
This race is still wide open! Of course Ron Paul can win!