I just found this app thanks to a video by the awesome Leathco. It is a working DS emulator for your android phone, Ouya console etc. I first played the demo version to make sure that it would play nicely with my android phone.
I have the original old school Galaxy Note and I have to say this emulator is incredible. I went ahead and shelled out the 8 bucks.

The cool thing is this app also works with my Wiimote which is about the only bluetooth controller device that I can get running on my Korean note.

Anyone else check this out yet? There is a free demo on Google Play.

Check it out: Android Police article.

Leathco's vid: