The creator, Samuel Blanchard, writes that the emulator is far from complete. He says that it lacks RAM management and the ability to backup the game state, but he says games are still playable. He also emphasizes that the display is very quick, thanks to a trick he will discuss in a future article. This is all written and French, and so is the video demonstration:
Unfortunately, an app like this will never be available on Windows Marketplace for Mobile. When the NES emulator was developed by Matt Bettcher, Microsoft said it broke the Intellectual Property law, so it wouldn't be allowed in the Microsoft's app store. Fortunately, the homebrew community will definitely make sure apps like this get into the right hands. In case you missed it earlier this month, you can see a video of the NES emulator below:
Emulators always get us a little excited since they bring back memories from our childhood. That being said, we're wondering: if you have a smartphone, do you have an emulator on it?