boards #4 and #5 running here. I have the video camera out, but haven't had time yet to film it.
Very exciting stuff Mike! You have our (almost undivided) attention and more than a few Amiga users are holding their breath, waiting for you to release the FPGA Arcade for sale to the general public.
What you have done is a great step forward from the original MiniMig (not saying that you built your design on top of Dennis' work, but it is a very similar device).
I will remain patient, as I am more likely to wait to purchase one of your boards after you have had the time to manufacture and complete the building of the second 50 boards.
Have you thought about ever trying to sell this as a complete product through regular retail channels? I know that to do that would be a whole new world of headaches and hassle, as it would probably require you to obtain a license from Amiga Inc. for the Kickstart ROM and Workbench files, but it appears that Amiga Inc. might be more open to selling a limited license than they have been in the past. (I know most people here will Boo & Hiss, saying screw Amiga Inc.'s license, but if you want to sell thousands of these as a commercial product, you would have to stay legal, unless you want to be added to the long list of people sued by Amiga Inc.)
You could probably sell this idea to a Chinese toy manufacturer and let them fight with Amiga Inc. for obtaining the license and you could just walk away with a fat check in your pocket. I am sure there would be some toy, or electronic company that would see a potential for a profit if they could reduce the production costs to get a complete FPGA Arcade product on the store shelves at a price below all the game consoles and advertise it as a complete retro-gaming device.
Getting licenses to run games for so many different retro gaming devices/computer systems might be very difficult, or impossible legally, but "Word of Mouth" advertising between the users of such a device would quickly have most of them searching the Internet for all the files they would need to run more games from Arcade consoles, C64, Amiga, Atari, Nintendo, Game Boy, etc.
Probably too much trouble for you to want to get into such a proposition, but if you put the idea into the right person's ear in China, the possibility is there that you could see a nice paycheck for all your efforts to create this great design. Putting this idea into the wrong person's ear could have your design stolen from you and you could see someone else profit from your ideas and designs, with zero money going into your pockets.
