Kitchens are still a rough place for technology, and even though the latest iPhone might survive a drop in the toilet, I don't want to drink the soup after a phone's taken a swim in it.

I've seen tablets in cafes at the front of the house, and sometimes the cashier (who can't touch food while they're also touching money) copies the order off the tablet and onto a piece of paper and passes it off to the kitchen the old fashioned way, while acknowledging it was received on the tablet.