Found (currently) at: http://new.instanssi.org
Author: Heikki Salo <heikki.ao.salo aet iki.fi>
Slides made with jQuery & Janne Aukia's cool zoomooz plugin: http://janne.aukia.com/zoomooz/
Btw, there's also video of the event where slides were presented - welcoming people to Instanssi 2011 demoparty:
Instanssi 2011 - Alkuseremonia (in Finnish)