Nodal interface using corMVC
We decided against using some of the more high-level frameworks such as Cappuccino or SproutCore because even though they're amazing frameworks that cover all the functionality we'd ever need, they've also gone in a slightly different direction than we're going by having heavy back-end components that are required to build/compile the applications being developed with them.
CorMVC suited us much better as a starting point for this goal, because it's extremely light-weight but at the same time very structured and scalable in its design. So far I've skinned it to make it look like a part of the OrganicDesign system, and changed the primary example object type from "contact" to "node".
The basic architecture
The interface is a viewer which uses the Livelets SWF method so that events can be propagated asynchronously from the local peer up to the browser instances, and interface events can be routed the other way down into the peer if necessary. The browsers current URL determines the node in the network which currently has focus, and the specific context within that focus such as views, sub-views and actions.
The most important point in this URL format is the hash character since no change in the URL after that character is considered to be outside of the current document, so the entire viewer session is self-contained into a single DOM instance requested only once at the start of the session.