I can appreciate node.js since it is an innovation which allows the industry to start tapping the massive pool that is Javascript programmers [shudder]. But its not particularly compelling since I've used Erlang, and for Java - Netty, Apache Mina, etc, and for Python - Twisted, et al.

I just wish my younger colleagues around me would stop harping on it like its the greatest thing since sliced bread and would deliver us from big balls of mud.