Cool website you've got there, really nice work.
I have plans to work with a lot of hardwoods, non-ferrous metals (soft metal), high-density plastics and composites, and probably some carbon fiber sheets. I'll also be prototyping some printed circuit boards (PCBs). Once the machine is built, I'll post videos of my cut test with each type of material.
I do plan on building a small business around this machine, but it will probably be another six or seven months before I have my machine built, a line-up of products, and a website launch. I'll keep everyone updated.