I have had recent correspondence with him. He repeated that he wasn't practicing photography at the moment, but he was pleasant, answered my questions, and seemed okay. I don't know about his personal life.
On another note, I too find 510 pyro a very interesting developer and I'm considering switching to it for my everyday use, although I have found a bug in it. I don't wish to start a developer war like those that existed here earlier. If other folks are using this developer or have questions and info, post it or send a PM. I'd be very interested in your results. I'm especially interested in regards to replacing PMK in a rotary process and VC silver based printing.
Be well, --LG--