I sent the coprocessor off to the fab at OSH park and I'm very excited. The coprocessor has almost all the bits that would go onto the Gameboy itself in a smaller 2" by 1.25" form factor so it's cheaper to iterate. For those curious, the Mattico logo is accompany I made up when I was 12 and it has stuck around ever since. There's still some big challenges to face such as heating/cooling, battery life, and frame rates. It is still very exciting.