<me thinking out loud>
I wonder if you can just change the yum config file to download the fc3 files to upgrade?
</me thinking out loud>

I also saw that they included firefox PR1 with this release.

Wonder why they just didn't wait the coupld of days for the final release for firefox to come out.

They normally don't include software that isn't "stable" in the releases... but they made an exception for firefox?