RAIN (by Sata) is an application for the Nintendo DS that helps you manage SRAM and EEPROM. It can launch NDS files too.

http://www.pat.hi-ho.ne.jp/sata68/nds.shtml#new

FINE is a NDS File Launcher. As further information is available in japanese we can not provide you with details.

http://www.pat.hi-ho.ne.jp/sata68/nds.shtml#new

Thanks to http://www.pdroms.de/index.php for the news: