Mugshot of Google's Phantom OS

As has been oft-surmised, here is a snapshot of Google's own OS that they purportedly use in house. However, something is suspicous. We tracked back to the original posting.

Question:
Who took this picture? There is a source at the bottom but no context of how they got the picture or why the blogger now has it?

Other questions:
Is this really Linux?
Is this open source?
Is this really what Google uses?
Does anyone care?

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