pyZui - anyone know about this?

[Donn]

Hi,
I happened upon this youtube link:
http://www.youtube.com/watch?v=57nWm984wdY
It fairly blew my socks off. In it a fellow by the name of David Roberts demos 
a zui written in Python. Aside from the zooming (which is impressive enough) 
it show embedding of images, pdf files, web pages and text.

He says nothing about what toolkits were used or how it might have been done. 
It's Linux-based, but no other info. On some googling, I can only find a few 
bug reports on pypi related to pyQt. I would really like to find out how that 
ZUI was done, it's simply amazing.

Any clues out there?

\d
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