Here is a shot of the Touch Book user interface (not too shabby):
http://news.cnet.com/8301-17938_105-10185351-1.html
Now getting back to the original thread subject: It would be very interesting if the Asus dual panel or the XO2 could be used with a regular usb or bluetooth keyboard, with both panels forming a single display. It would need to be propped up on a stand, which would be a little inconvenient, but I think I could live with that.