Minecarts with towing tracks would be handy on the surface for the bulk movement of goods between towns. Think a endless loop of carts with hoppers at every station. You put items in and they fall into the hopper in the other town. And if we ever get logic pins we could tell the cart what hopper to drop the item into. By logic pins I mean little bits that jut out the side of the cart and touch a mechanical linkage on the station side. If the bits match the hopper opens. But for that to work we would first need a chunkloader item.