Endless Paradigm

Very bottom, below previous versions

Google wouldn't stick this kind of stuff on a .eu domain :P

Source: http://www.macrumors.com/2009/11/19/goog...late-2010/

Unsure the legitimacy of this, however, seems an alpha was compiled:
http://www.itworld.com/operating-systems...-test-spin
http://www.techcrunch.com/2009/11/19/gui...chrome-os/
http://gdgt.com/google/chrome-os/download/

Some description here: http://www.pcpro.co.uk/news/353458/googl...s-unveiled
Personally, Chrome OS doesn't sound appealing to me, just like Chrome itself.  It aims to be a rather basic OS, or, somewhat more like the cloud concept.