Phone's and Dinner

I currently work as a server/bartender and a common trend I've noticed is that people cannot put their phone's down throughout an entire meal/night out. People are constantly checking emails, taking pictures, tweeting, etc. There are numerous times I go to take an order and people seriously cannot put their phone down long enough make eye contact. Can a text really be that important? The growing trend of phones complementing dinner could work towards restaurant's advantage. There is money to be made in a phone app that helps improve a customer's experience from seating, to ordering, to even paying the bill. What do you think?