Point taken. I just assume that Google is harvesting enough personal info through search that they could carve out a space for a private OS. Maybe I'm being naive. Yeah, I'm probably being naive.

I imagine the OS would be open-source, which would probably make it more trustworthy than Windows.

Not saying it'd be completely trustworthy, however...

But at the end of the day, chrome OS or whatever would be a desktop equivalent would just be another flavor of linux. Why chose a distribution managed by a known privacy "predator" over any other distribution then?

Practically, I can't see a reason either. But I imagine it would gain popularity by virtue of the Google brand and marketing.