Nintendo DS

The Nintendo DS is the most recent handheld system developed by Nintendo. It was released in 2004 and was the first handheld system to feature dual screens. In improved edition called the DS Lite was released in 2006. The term "Lite" refers to it having brighter screens, smaller size and lower weight, it still has the same features as the original.
DeSmuME is a freeware emulator for the NDS roms & Nintendo DS Lite games created by YopYop156. DeSmuME is also known as YopYop DS is written in C++ for Microsoft Windows and can play Nintendo DS homebrew and commercial nds roms. The emulator its self is in French (with user translations to English and other languages). But even French version of DeSmuME is easy to navigate through menus as it has a similar users interface to DSemu. It supports many homebrew nds rom demoes as well as a handful of Wireless Multiboot demo nds roms. DeSmuME is also able to emulate some of the commercial nds rom titles which other DS Emulators like iDeaS and Dualis aren't capable of doing so.

download here:   http://www.desmume.com/download.htm