[wgx]

I had around 1,800 uniques over 3 hours in 2011 - posted some stats (browsers, OS, geo) here: http://willgrant.org/hn-traffic-stats-summary/

[thenextcorner]

I made a similar analysis over a longer period of time with a larger sample basis. http://thenextcorner.net/hn-users/

Always interesting to see what systems, browsers HN users work on.