I was not able to find anything about this ont he blog so far, but as I was browsing Hackaday this morning, I saw a link to the Vicacopter site. http://vicacopter.com/vika1.php
It looks very similar to the ArduCopter, but seems to only have 2 accelerometers rather than the three that we use, so with the magnetometers, it has 8 DoF. Other than that, details look pretty scare.
Hackaday have film of it doing some skywriting on their post: http://hackaday.com/2011/01/17/tri-rotor-helicopter-with-full-autopilot/