The Nintendo PlayStation

At one point in gaming history, Nintendo and Sony had a brief partnership. The partnership began when Ken Kutaragi became interested in video games, he eventually signed a contract to developed hardware that would drive the audio subsystems of the Super Nintendo Entertainment System (SNES). The partnership would also give the console both cartridge and compact disc support.

There was some dispute over control of the licensing. Under the agreement, Sony would develop and retain control over the SNES-CD disc format. To counter this, Nintendo negotiated an agreement with Philips. During the E3 press conference of 1991, Nintendo announced it's partnership with Philips, outraging Sony and Ken Kutaragi. This spurred Sony into building the PlayStation to compete with Nintendo's system.

Recently, photos have been appearing on the internet from one of the sons of the executives of Sony. Essentially showing the prototype of the system that Sony and Nintendo were working on before the partnership collapsed. Images below are of the prototype that have been shown. I find this system to be very nerdgasmic, because this is perhaps the only prototype of the system.