Janko Mivsek is presenting AidaWeb, a web app framework that's been around since 1996. Janko has been steadily adding support and features - it's a completely up to date thing. The base idea - objects map to web pages.

So to carry that metaphor:

anObject printString

Becomes:

anObject printWebPage

It's also oriented towards building REST based applications, and runs on Squeak, VisualWorks, and Gemstone. Janko has a lot of information available on this stuff - check it out here.

On the roadmap: Internationalization support (multiple language content support), callbacks, improved navigation. He's also looking at in-place translation.