You can play with the Phpns codebase by cloning our hg repository:
$ hg clone http://bitbucket.org/alecwh/phpns/ (you can fork it here)
Contact
While we usually answer all emails, please restrain from emailing us personally about questions or bugs. For those types of things, create a new issue on Bitbucket. If you're unsure if you should contact us, just do it, we can guide to the right place.
Alec Henriksen — alecwh{at}gmail[dot]com
My website provides more contact info.