On another note, home delivery has been in Japan for many years, but there, the density of population makes it feasible - someone at the restaurant just loads the trays of food onto a special spring-suspension tray holder on his bicycle and makes the delivery. After finishing the meal, the recipient leaves the trays, dishes, and bowls outside for pick up the next day. Usually, there is no extra charge, and tipping isn't common in Japan, so it's a good deal.
See http://books.google.com/books?id=kJ3TAgAAQBAJ&pg=PT116&lpg=P...
Also, for some history, http://books.google.com/books?id=OT8OSoiYyagC&pg=PA38&lpg=PA... q=demae%20japan%20delivery&f=false
I don't know if this is still possible, but apparently you can order take-out using a Wii catering channel: http://www.destructoid.com/japan-order-pizza-with-your-wii-i...
Here's an example of the take-out offerings from restaurants in a particular area (postal code): http://demae-can.com/search/delivery/today/13110013001/
There are ratings listed. Heh, maybe there's another teaming possibility ... Yelp.