Last week Apple stores suffered thru POS outage and were reduced to old style credit card machines according to Techcrunch. Similar outage supposedly hit NCR Silver.
Manhattan NY article on iPad & tablet rental. That concept has been explored before based in airports and other high footfall traffic areas. Here is photo of Powerport unit built five years ago for precisely that..(ipad laptop rental). Click to enlarge the image.
Visit the right British restaurants and you might assume so. This evening, you could eat at Piccolino and scan QR codes on the menu to find out more about the dishes, self-order at London's Inamo using its touch-screen e-tables, and use an app to settle your bill online at Pizza Express. All of which will minimise your interaction with actual real-life waiting staff.