That's hard to believe (I believe it, but it struck me as incredible at first). I don't know anyone with a Chromebook, and it's such a different way of computing that it's hard to believe it's taken off so much in such a short time. I think it is reflective of a new generation whose first computing experience was with phones and tablets. The idea that nothing of importance lives on the device is a huge paradigm shift…
I take it as a given that my Chromebook will always be more secure than my Macs and Windows machines. Less likely to have invasive malware of all types.
I currently have a Toshiba Chromebook with a gorgeous screen and good battery life. It just works.