Events, threads and writing robust client/servers in Ruby

I have been building client/servers in Ruby for past 3 years and drawing from that experience I would talk about Threads in Ruby, Reactor pattern in Ruby, Eventmachine, Revactor, Packet, Actor pattern in Ruby, protocol parsing (ragel). Touching upon various threading implementation in MRI1.8, Ruby1.9 and JRuby. Best practices regarding threading. Writing threaded clients/servers. When threading model suffices and when it breaks down. Non-Blocking IO in Ruby. Select VS other advanced selectors. When to use NIO model and when to look for alternatives. Using Actor pattern in conjunction with Reactors for better scalability. And at last if time permits, I would present my ideas on building better network protocols and using ragel for protocol parsing.