Tesco have introduced a new kiosk as a Proof of Concept in it's Woolwich store amongst others.  The design appears to be their e-commerce website transcoded (using Usablenet) using a piece of hardware designed by retec-interface.  They appear also to have a solution for integration Chip & PIN as a payment method into their device.  The device looks very similar to the Pyramid Polytouch device seen in a number of Marks & Spencer stores.