A similar service can be done by Steve Jones of Blue Panther & BoardGamesNow. From reports at Protospiel last weekend, his prices seem very reasonable. (A few people had prototype laser-cut wood pieces made by Steve.)
My uncle sells the machines that Touch of Wood uses.
The darkened edges are indicative of all laser cutters because the cutting is done with an ultra-hot beam of light. Some woods don't burn as darkly, and anyone who has experimented with these cutters can tell you which ones darken the least (I think cherry is one of them). Laser cutters aren't restricted to cutting just wood, either. Several businesses use them to cut acrylic and plastics. They can also cut stone, glass, and metal.
I was expecting more elaborate shapes, but anyway it is nice to see that sharp edges can be easily achieved by laser cutting wood. Still, i wouldn't use these thin edges. The tips will easily come off if handled not carefully, especially if the wood grain(?) runs through the tip. That is why all wooden game pieces have rounded edges.