I wrote another comment above questioning whether some of the early multicore promises of Erlang have become less relevant with the rise of single-emulated-core

I wrote another comment above questioning whether some of the early multicore promises of Erlang have become less relevant with the rise of single-emulated-core VPS servers. That could have dampened the hype. Also, I'm not an Erlang expert but Erlang does seem to have had a much larger influence than just the uptake of the language. Scala and Clojure have certainly borrowed heavily from it, and that has had a further trickle-down effect into other higher order languages (eg, the actor model).