The MacBook Air was for his kids: "if you have anything to do with security in a distro, and think that my kids (replace "my kids" with "sales people on the road" if you think your main customers are businesses)...".
P.S. Out of curiosity, could someone explain me why I'm being downvoted?
And here's a quote of his in his G+ blog: "Point me to a better laptop. Trust me, I tried. They don't exist. It's sad. They are all big and clunky." (Someone suggesting Lenovo) "no, Lenovo doesn't. I have the Lenovo X1. It's bigger, plasticky, and has worse battery life."
(As for above, probably he has one for his kids too or his kids also use his --or he just mentioned it in the example above to refer to a usability issue for the "common user").
In the past he also had a G5 (Linux) as his desktop machine, and an iBook with OS X for writing his autobiography.
P.S. Out of curiosity, could someone explain me why I'm being downvoted?