That disconnected inner line is a DC line, the two outer tracks are DCC. It looks like this is a new layout, that he's been planning since at least last fall. There are also some pictures of a smaller layout he worked on in between, but I couldn't make out why he set this one aside. He's apparently come back to it now.
Interestingly, he imports his DCC equipment from a U.S. store that ships internationally. Sounds familiar.
And his most recent project is mounting a camera in a DCC Kato Eizan Railway 900.
Very interesting stuff.
