Agility Maps Touch is a complete course designer for dog agility. You can create a course in a very easy way, you just need your fingers.
You can move the map by selecting the cursor icon and dragging, or zoom in and out with two fingers. The movement of obstacles is also done with the cursor icon selected.
Obstacles rescale with the map size, but currently there is no customization of the obstacle length or width. You can create all the obstacles you would need to design a course by selecting them at the button area.
You can save an image of the course map to your Photo Library (in order to share the course map). Just allow access to the Photo Library when asked.
This application runs on iPhone and iPad.