An interesting way to differentiate your site would be to allow searching for multiple waypoints in no specific order, and then have your service return the opt

An interesting way to differentiate your site would be to allow searching for multiple waypoints in no specific order, and then have your service return the optimal route. For example, if I have three places I need to stop by (grocery, gas, and car repair shop), but I don't care which order I go to them in. Let me enter 3 addresses, and return directions for the optimal path. If you want to get even more ambitious, let me enter destinations that have multiple locations, (ex: gas, kroger, meijer, and radioshack). Select the optimal locations for each so I spend the least amount of time in the car possible. edit: It looks like your service may do part of this (destinations with multiple location choices) - the site wasn't loading for me before. Very neat!