Hi there,
Whilst DM is correct that the usual reason for BIOS versions to be pulled because a problem has been noticed, I don't believe that is the reason this time around as nearly all recent BIOS updates dropped off the update site towards the end of last week and EX58 said there was an error with the Gigabyte site.
The latest BIOS versions for Intel boards are still available from TweakTown and if there was a problem they would also have been removed from there, so I guess we will have to be patient and wait for normal service to be resumed on the download pages.