I heard about Delivered Dish d-dish.com last summer while talking to Shelly about delivering Honkin Huge Burritos. It looks like they're still in business, which is cool to see. The use datawedge.com to handle order dispatching. $5 delivery fee and tiping the driver is expected, $15 minimum food charge. That seems like a lot.

google also came up with grubnow.com which is a portland restaurant directory.