As someone working in SF right now, keeping tabs on all the companies and technologies out there, I don't particularly consider Node to be the new hotness. Curr

As someone working in SF right now, keeping tabs on all the companies and technologies out there, I don't particularly consider Node to be the new hotness. Currently, Ruby probably has the plurality of mind share, followed by Python and Node. But I think the greater trend is one of polygot backends. Startups bringing several different languages onto the backend, when necessary to scale beyond the initial web app. This does involve a slow dispersal of mindshare away from Ruby/Rails. Things like: Node, Python, Go, Scala, Erlang, and so on.