It certainly will be a factor but of course the ongoing polls (for whatever value they have) of course show the obvious - not all the votes are for Guliani. It also shows that those that voted for Guliani were motivated Guliani supporters that would have probably not been swayed to another candidate so that limits any votes he may have already attained.
The good news is that current polling suggests a strong Romney surge with McCain and Guiliani slipping so if anything good comes out of Florida it’s that McCain is finished off. I just didn’t realize there was so much early voting going on.