Is this licensing story shady or is it just me?

There is a new Nintendo DS emulator for iOS that enables you to run Mario on your mobile device, see - Mario Goes Mobile – NDS4iOS Brings Nintendo DS to iOS…Unofficially, Of Course. You can't find the emulator (named NDS4iOS) on the Apple App store. You have to download the emulator from the official NDS4iOS website. And you have to change the date on your device back to February 8 2014. What?