As I understand it Inkwell will work with any device that tells the OS it's a surface device (as opposed to a mouse or touchpad). You should definitely contact the manufacturer of the copy board and ask them for some guidance.
Supposedly, you can't use any graphics tablet other than Wacom. Well, I know for a fact that is false. All you have to do is open a file called "Inkserver" (search for it). Ink is awesome!