vezzy-fnord explains it well. The concept is that you can build and share executable code as freely as you share videos and pictures. Doing that requires a program architecture which contains the code correctly but can also meet a lot of use-cases. My decision was to use HTTP and treat the Workers like Web services, which makes Ajax a uniform interface to local and remote code. Then, it uses link relations to do discovery and configuration.

It's all very early, but please take it with an open mind as a pretty experimental project, and I'll keep making it clearer (and more complete).