Would I buy a device in the form-factor of the Origami – yes, and probably will, but probably not yet.
Having watched the video is look like it will be a great piece of equipment for having around the house. The predominant view seems to be that we will want them in landscape format, but I think I would prefer it in portrait because I see myself doing a lot of reading that way. In portrait format it feels a lot more like a book.
(PS: Jimmy and Grandad eventually made it back into the house. They needed some assistance though.)