Crossposted to the JG article comments:

I received the Kebony sample, a piece of 5/4 x 6 radius edge deckboard. I haven’t tried taking a tool to it yet. I do want to cut it and see if it is colored or stained all the way through, or if this piece was cut and then treated.

It certainly seems to have a harder surface than ordinary pine; you can push a thumbnail into pine, but not with this stuff.

The color seems not as rich as a hardwood, but not offensively so. I’d also like to see how it weathers, and how the color changes over time. My next step is going to be to cut it into two pieces, and set one part of it out to go through the winter outdoors and exposed to rain, sun, and snow.