Yesterday, we reported about the leak of unstable build of Chrome OS; but what was actually leaked was in fact an Alpha/Beta implementation of the Chromium browser that’ll be used in Chrome OS. As such, it was distributed in .deb package format, which’s the very same format used by Debian-based Linux distributions, such as Ubuntu. What you see in the video, is build of Chromium (4.0.222.6-r28902) – clearly a work in progress but may bring a little bit of early insight into what Chrome OS actually is.