The did have a Centipede at the BLI booth in Hartford. Too bad they didn't have a layout to run it on. But, they let me take a picture:
I spoke with one of the BLI guys. He said he actually got one of these to run around 18-inch curves. He showed me how far out the pilot trucks would swing. Yeah, it would look silly, but it's nice to know that if you've got some tight staging curves, you could still run one of these.