There are rumours about late prototypes of new tablets from both Microsoft and Apple. The Microsoft Courier is more of a booklet with two 7 inch multitouch screens, hinged in the middle. There’s a camera on the back of one. And here’s the video of the interface:
Gizmodo broke the story and everyone else was playing catchup.
No one actually seems to know about the Apple tablet; it seems to be speculation relating to the volume of printer material potentially becoming available via iTunes, and the success of the Kindle.