I am somewhat interested in their comet container which is based on JVM + Rhino. I am guessing they've rolled their own (using their raw NIO or Netty), rather t

I am somewhat interested in their comet container which is based on JVM + Rhino. I am guessing they've rolled their own (using their raw NIO or Netty), rather than go with Jetty's "Continuations". I wonder if there's any chance Google will open source it, much like Facebook outsourced FriendFeed's Tornado? I am also curious about their distribution model (how do you provider a consistent experience if this is to run on multiple machines?) -- or lack thereof (do they use load balancer "magic" to ensure that all collaborating on a single specific session go to a single machine, potentially creating hot spots)?