I think I remember that WH Smith's airport shops are among the busiest that they own. If you cick on the link and scroll you'll find some excellent images, including one of the Kobo slot with what appears to be at least 2 working models!!!!!
Not entirely sure about the rebranding as WHS is sooooooooo well known in the UK, but the store looks very nice.
http://internationalvisual.wordpress...orth-terminal/