I've had the panel forever and finally got it done for the boys to play with. I quilted along the lines of longitude and latitude. Now I can bring their foam puzzle map to Goodwill and they can still play conquering the world!
I made the binding out of scraps, but they seem to blend okay. I was really lazy and quilted some lines with white thread until it ran out, then I just lightly touched them with black permanent marker to make them blend in better = )