Not too long ago RetroUSB announced its next product, called RetroVision.
Some of you may have heard of the Biederman Gameboy Adapter that was being developed for the Nintendo Entertainment System back in the day, but never got released or even massively advertised.
Camerica was supposed to released a gameboy adapter for the NES, and it could've been the Biederman device, but again, it never happened.
Now I'm guessing that Brian from RetroUSB somehow was inspired by the old photo and he set off to construct a device similar to the Biederman adapter.
The RetroVision will retail, once available, for $130 incl. shipping which may seem a bit steep. But please note that a lot of work goes into making this thing as an old Gameboy is fitted into an actual NES cartridge and then connected to a NES circuit board that translates the Gameboy signals to NES and vice versa.
Awsome stuff for sure!