“WebCard”

Another idea is to build a HC-like tool/application based on existing Web/HTML infrastructure.  

A sophisticated UI development tool would create, edit and debug stacks, and stacks would actually be HTML, XHTML or XML data (with Javascript embedded) that could be “played” in any Web browser.

Might require an embedded object (Java?, activeX?) to do things Javascript can’t do.

No server required, Could run locally in a browser.

The UI dev tool could even be a component that plugs into browsers.

This is sort of like Wiki technology, but the dev tool would be much better, like HC’s interface. (and runs locally without a remote server.)

There’s tons of available Open Source code to support this kind of approach in the Firefox/Mozilla projects.