[xpaulbettsx]

This "PubSub" pattern is really trying to recreate RxJS but without the expressiveness - if you find yourself doing this kind of work a lot, you should check it out

http://reactive-extensions.github.com/RxJS

https://github.com/Reactive-Extensions/RxJS

[jlogsdon]

PubSub is pre-node, making RxJS a "more expressive" PubSub.