It can only be rotated in the one direction.
When I was researching the T4020 I looked at the Fujitsu website that had images showing the tablet screen turning at a different angle from the keyboard (I remember thinking "Cool - that could be useful in meetings"). But it can only be turned in the one direction.
As the tablet is so lightweight and easy to turn/move its not been an issue for me - but I would agree that the images are misleading. And it would be more fun if it could rotate both ways.