Yes, that is true. Romney may call himself a conservative now, but has he been all his life? Based on his history i would say no, he ran away from the conservative label when he ran for election both times in MA. Only now that he wants to be president he's jumping the conservative bandwagon.
Romney's run against Ted Kennedy wasn't a profile in conservative courage. Nor was his campaign for Governor either. Can't say I'd rule out voting for Romney if he wins the nomination, but there are better conservative candidates available to the GOP. The GOP hasn't nominated a pro-choice/pro-abortion candidate since Gerald Ford in 1976 and I don't see it that changing for the GOP`s 2008 primary-nomination process. It would fracture the GOP and allow a Democrat to win. Ann Coulter said to Sean Hannity the other night, that she will not vote for a candidate who supports abortion. Sounds like a good policy for ALL conservatives to follow.