Circular route calculation would be definitely be the coup de grâce of route-plotting apps for me. I've never tried an online route-plotting app before and was

Circular route calculation would be definitely be the coup de grâce of route-plotting apps for me. I've never tried an online route-plotting app before and was expecting/hoping that yours would be based on generating circular routes. For most users, I think finding a circular route is the latent need. Being able to plot a route manually is the next-best solution. Overall, great work! Keep it up and let me/us know when you figure out circular routes. :-)