Startup Idea : Drive-thru pre-ordering

App that allows you to pre-order drive-thru from your phone The resulting order would be converted to a 3D barcode that can be read by a scanner at the drive thru window, or beamed to the restaurant. Bonus: - allow special orders (e.g. no onions), (but only when allowed by that restaurant for that item) - allow remembering of special orders (e.g. always state no lettuce in my order where possible) - remember favorite menu items - remember previous orders to allow re-ordering the same as usual - remember client preferences and only display items that appeal to client (e.g. vegetarians would never see meat options or items that cannot be customized to have to meat) - allow for easy bypass of customizations (i.e. when you have a 2nd person in the car, you want to be able to order their meal without forcing them to have your preferences) - send order along with GPS location so the meal is ready when you arrive - pre-payment by phone