It's interesting that you say that -- and I don't mean this to be contentious -- I've genuinely had the opposite impression. Unfortunately HN's a bad place to

It's interesting that you say that -- and I don't mean this to be contentious -- I've genuinely had the opposite impression. Unfortunately HN's a bad place to get a sense for such things since it tends to be way ahead of the curve. (i.e. things like Node and Scala appear far more mainstream reading HN than they are in practice.) Most of the folks I know working on Rails 2 sites have only started taking Rails 3 seriously in the last month or two and don't seem to be in a hurry to upgrade. It'd be interesting to see a curve of when major rails deployment cut over (if they do). I wonder if there's a tell-tale Rails 3 signature that could be used combined with e.g. an 80legs crawl?