Since you're the thread starter, I assume they've sent you a fix already?..
Personally I would have thought if it was a FW update, that the tech bloggers/vloggers would be all over it before a UK based retailer? I would have thought a retailer would only get first wind of it if they had to start to prepare for shed loads of returns?
Hoping it's just FW!
I have just created another post showing details of the firmware update. I have been testing it all weekend on a number of machines and different drive sizes and can confirm it does work and improves the performance of the drives.
http://forums.overclockers.co.uk/showthread.php?t=18629993
As you can see from the screenshots it has improved the read speed on the drive dramatically. I am just confirming with Samsung now how the update will be released to you all.