User blog comment:Lumage/This Is what happens when you try to dig up information on PTC 3/3D/3DS/V3/@comment-14600979-20140408191345

And the URL's in the last two, along with the older @ demo:

http://smileboom.com/special/ptcm2/html_third_qr.php

http://smileboom.com/special/ptcm2/third/nd4/

http://smileboom.com/special/ptcm2/third/nd5/

Intriguing, eh?