That FlexZone is actually the entire bottom left section of the refrigerator. It's part of the freezer by default, but you have the option of dialing it up into fridge mode, giving you extra fresh food storage space.
So what's a fridge with Food Showcase and Flex functionality worth? Samsung tells us it'll sell for $3,400 when it makes its retail debut this spring. International availability is yet to be determined, but that price comes out to about £2,340, or AU$4,870.