"I own this product now about 10 days. I was amazed by this creation, that mimics the OLD good C64 precisely. I also like the modern add ons, that were added to the Ultimate 64. I like USB support, HDMI, support for Dual SID. Compatibility is almost 100% so far. That was something I was looking for a long time! Thanks for crating this product. Off topic question: Would be possible to do other computers like C128 or Amiga 500+?"