The official site: http://www.desmume.com
The project was canceled some time ago...
The last version was 0.40 with poor DS support (at that time)
Some guys picked the project up....
I tried it, this is a great step forward!!, now also plays sound, i tried the game scooby doo.... played slow (for now), but keep this emulator in sight and give it a try, works great at this time!!About nine months ago, the team around the Saturn emulator Yabause has started working on the canceled Nintendo DS Emulator DeSmuME. Today, a new version has been released and it´s time to enjoy the results of their hard work.
You can download and visit it at: http://desmume.sourceforge.net/