About Runtime Model for System Application

Hi,
   As a web developer, I'm very interested about this Runtime
Model<http://abarth.github.com/sysapps/drafts/runtime.html>which
unleashed the power of HTML5 for desktop applications, it's awesome!
   However, I'm a little bit eager to know how is progress of this draft?
Is there any discussion group ? or things like that, thanks a lot!

Bai.