Most definitely happens for me. I read the article on Ars and thought "ah ha, it's not just my eyes!". Doesn't bother me much, because I very rarely run at the lowest brightness settings. I was surprised to see on the Ars article that the guy does run at the low brightness settings. Maybe he's always using subdued lighting in his office or something.
Anything "2 dots" and below on brightness shows the slight intermittent brightness flickers. Above that, it's stable.
We'll see if it's a problem on my next 14 hr flight to Shanghai. I usually turn the brightness all the way down to save battery power, but I will probably have to keep the brightness up a bit to avoid this prob.
Edit: Actually, reading the other post above - I turned off the "automatically adjust brightness for changing ambient conditions" check in sysprefs and I seems to have resolved the issue.
