"Romney, unlike Giuliani, is far more likely to keep his commitments to us."
I very strongly agree. Romney has spent, is spending and will spend much time persuading conservatives, his conversion is sincere. He will not be able to betray his own conversion without losing ALL credibility.
If that is true, why do you thing he has any credibility now? After all, he has said clearly in the past that he will "never waver" on his staunch pro-abort position.