We turned on the Nintendo PlayStation: It's real and it works

When a mysterious "Nintendo PlayStation" prototype with both an SNES cartridge slot and a CD drive made the rounds back in July, many remained skeptical. Not even Sony PlayStation's head of Worldwide Studios, Shuhei Yoshida, wanted to confirm its authenticity. Or perhaps he just didn't want to bring up the bad blood between his company and Nintendo over this failed collaboration.

http://www.engadget.com