Intel's revised Sandy Bridge-based motherboards are looking to arrive in the first week of March, everyone is calling them B3. While CeBIT is cranking along in the first week of March, press and customer samples of B3 revision boards will be making their way around the world.
It's also possible that there might be B3 revision boards at CeBIT, but that is something that will have to wait until the event itself to see if it's true. If it is, stock on retailer shelves shouldn't be too far behind and because the issue only effects SATA II ports, most customers seem to be ok with it. How do we prove this? Intel still has huge demand for Sandy Bridge even with the fault, it's an unstoppable Denzel Washington-type train.