Seen a few high end protos and similar items for sale on the bay lately, so I figured I'd test the waters myself. I think the listing pretty much sums it all up, Dream has a similar copy in a different stage of development and I know Martin has a Tengen Tetris proto, but I think Jason's copy and my own are the only two that are in he licensed by Nintendo phase.
Anyway, I'm taking offers and I'll all ears, so let me know if anyone is interested!
http://cgi.ebay.com/ws/eBayISAPI.dll...=STRK:MEWAX:IT