Annie Lowrey, at Slate, imagines the day when your waiter never leaves the table. And never annoys you, or takes too long to bring your food, or even speaks to you:
It works like this. The company manufactures tablet computers with full-day battery lives and a credit-card reader attached. The interface is easy enough for a grade-schooler to use. You select what you want to eat and add items to a cart. Depending on the restaurant’s preferences, the console could show you nutritional information, ingredients lists, and photographs. You can make special requests, like “dressing on the side” or “quintuple bacon.” When you’re done, the order zings over to the kitchen, and the Presto tells you how long it will take for your items to come out. Want a margarita in the meantime? Just add it on the console, and wait for the waiter to bring it. Bored with your companions? Play games on the machine. When you’re through with your meal, you pay on the console, splitting the bill item by item if you wish and paying however you want. And you can have your receipt emailed to you.