The Survey Application is Apache Open Source and is a derivative of the FoCul Survey Manager Product.
You can see a demo here http://www.focul.net/sm-apache-demo
There are three versions of the system :
A Pro version supporting integration with other Apps, multiple languages and other features.
A free Lite version with optional support
This Apache Open Source version.
See more http://www.focul.net/sm
See an overview screencast here http://seancull.co.uk/public/seancull.nsf/dx/apache-xpages-survey-applications.htm
Thanks to John Mackay who inspired us.
p.s. Andrew did most of the coding !