[GoGlobal]

It sounds pretty interesting, but is JavaScript really the proper way to implement... Is the implementation transferable to other problems?

[ImJasonH]

I've been doing some free-time hacking on a generic solution to distributing Javascript tasks. https://code.google.com/p/mrjs

It's definitely not secure, or very reliable, but it's a start at least. (Contributions accepted!)

[sylvinus]

The worker implementation could be made generic with a little work. These people made a map reduce implementation with a similar design: http://maprejuice.com/