NesDS v0.44b is released. NesDS is a public-domain NES emulator for the Nintendo DS. The code was originally written in the commercial Nintendo DS devkit. This project's first milestone is to port that code to the open-source devkit.

NesDS v0.44b Changelog:
Since the nesDS file is larger, this version is NOT recommended for those who just want to play nes games.
Port the whole project to devkitPro, using libnds, libfat....
Almost no update, but some figures may be worse. e.g. sound with the games that read reg4015. Some games' sounds work better... - -!
You guys can try 'Start+Select+R+L' to exit your nesDS and return to the main menu of flash-card. On mine, it just shotdown my DS(R4SDHC with kernel1.34, no help with moonshell2 either).
Since this version, the mem region cannot be accessed freely, be careful if anyone wants to write a patch.
The libnds and libfat are too big... 128k around. Shit that!

Download: NesDS v0.44b
Source: Here