Level Editor DS (LEDS) by PypeBros is a map editor to be used directly on a Nintendo DS.

Thanks to http://www.dev-fr.org/index.php/topic,5213 and http://www.nintendomax.com/viewtopic.php?t=14016&f=19

http://sylvainhb.blogspot.com/2011/11/leds-opengameart.html