Definitely a disappointment. As another poster stated, putting retroarch on a tablet pretty much accomplishes the same thing.

That is a really neat idea. I initially thought it was some form of rhythm game controller, when I first glanced at the photo of it.

I have watched so many retro gaming shows on TV, YouTube, etc and never knew or heard about this. The amount of odd controllers released in Japan must be endless.

Definitely interesting to know about.