I'm not sure if they have the same functionality, but DeCarta ( http://www.decarta.com/ ) has some nice map API stuff for routing / display.
Otherwise you could go for open source stuff like PostGIS with OpenStreetMaps or openrouteservice ( http://openrouteservice.org/ ) there are routing libraries, although I haven't used them extensively myself, so I'm not sure what they have to offer.