Requires Unity 4.5 or higher.
Create your 2D/3D waypoint map within the editor, then join the MoveNPC to NPC, assign the path and He find the nearest CrossPoint and start moving throught waypoints.
Video tutor | Video2 | Spherical

Features:
- Count of ways - unlimited. Create a huge waypoint map;
- Count of crossway - unlimited. You may creare a complicated path for a couple of minutes;
- Combine several ways together;
- One or two directional ways, loop ways, crossways;
- One route can contain many various of ways;
- Allow you to create non-linear way;
- Adjustable width of the ways. Your NPC will not move one after the other. Create the urban traffic.

v1.1 fixed some bugs v1.2 Now, spherical object supported. Create your ways on the Planet.