DSx86 v0.25 Beta is released. DSx86 is a PC emulator for Nintendo DS. It's purpose is to allow you to run old DOS games on your Nintendo DS game console.

DSx86 v0.25 Beta Changelog:
This version is again rebuilt with the newest libnds libraries. It should be able to be run using the so-called "sudoku hack". It also has a new Smooth screen scaling method implemented in CGA and MCGA screen modes. NOTE! Especially in the MCGA mode this causes a severe performance hit, and in EGA and Mode-X modes you will only get a black (or corrupt) screen in this mode.

Download: DSx86.nds
Download: DSx86.ini
Download: DSx86_LW2.nds
Source: Here