Brownies are well beyond Holgas in terms of traditional "image quality".
If the camera were something other than a regular Holga with a gimmick molded into the top, I might be interested. Same old Holga lens. Same old Holga body. The pix will look absolutely no different than a regular Holga, so what is the point? Holga with flash? Pretty neat gimmick that can actually change your pix versus a regular Holga. Stereo Holga? Cool idea. At least it is different, though just as crummy. Polaroid Holga? Another cool idea (though so expensive that I would be flabbergasted if even one person had bought it). They are all things that actually change your pix versus a normal Holga.
I think this would be cool if it was a whole new design...but not as a stupid gimmick that does absolutely nothing.