While I agree it could be programmed to do this, I haven't seen this yet the few times I've used ipad ordering. Seems like for places where menus change, it would be hard to keep up, but would work fairly well for restaurant chains where someone at corporate could update all at once.

Since I don't have allergies, my menu questions might be harder for an ipad to answer. Granted, I don't have questions all that often. But as an example - I see a $15 salad on the menu. Is that entree sized? All of that can be programmed of course, but since someone will likely have to carry the food out anyway why can't they first stop by and ask if I have any questions? And if they're going to answer the question and carry out my food, the ipad doesn't really save the restaurant much money.

Now, if we're going to a model where robots deliver the food and bus tables, that could work. But I can't see that as the type of restaurant I frequent. Maybe everyone should move to the sushi conveyor belt model .