I picked up a piece of black palm at the WW show in Atlanta last week and had a shot at turning a couple of very small bowls. They're only about 2.75 inches wide. It's interesting stuff, I'd like to try some bigger pieces if I could find them. It's pretty dusty to turn and the black bits can create some nasty splinters, but it's right interesting to look at when (if) you get it done.
Robert