source and aditional content: http://www.consolegames.ro/forum/f35...ml#post1266828
and here:http://assemblergames.com/l/threads/...6/#post-818728
and hi-res pictures here:http://imgur.com/a/Ll9kS
citez ce zice unul care lucreaza la sony:

"1. Olaf had one sitting in his office, which was in NY (and explains the find on the east coast of the subject of this thread). Now, it wasn't until years after Imagesoft was morphed into Sony Interactive Studios, moved to San Francisco from Los Angeles (and Olaf being pushed out of Sony) as well as New York being shut down that I learned Olaf had a working prototype.

2. There were two internal titles that were developed, but only about half way before canned. Those titles were "Hook" which was eventually released on SNES cartridge, and Sega CD (outside of graphics, was representative of what the SNES CD/Playstation version would have been), and "Forteza". Forteza was a rail-based space shooter with CG pre rendered FMV backgrounds. Forteza was not released on any platform.

3. I've seen people cite yellowing of plastic as suspicious. As a model collector, I have rare models never displayed but stored in their boxes that have yellowed. Yellowing of plastic is not always light or heat driven.

4. Regarding cartridges being exposed for access to the EEPROM chips, at Sony Imagesoft we never assembled them in cartridges unless going out to press or other display. Internally we used the chips on bare cartridge circuit boards (also other platforms too).

5. There are at least two more Playstation units intact, at Sony Japan."