NightFox’s Lib is a library written in C, based on libNDS of devkitArm. NightFox’s Lib library contains functions witch making the use of backgrounds, sprites and collision maps easier.
NFlib 3dSprites Layer Set
Thanks to http://nintendomax.com/viewtopic.php?t=13983&f=19 for the news.
http://www.nightfoxandco.com/index.php/20111108/nightfoxs-lib-ver-20111108-2/?lang=en