It would be very interesting project to do, many ideas in my head but we will see what will comes from it.
I’ll definitely use CSS to support many printer friendly, light, handheld version of the web site, and will have RSS syndication.
and of course it will be compressed for faster download, what else … I’ll keep thinking

The worst part that it should be very simple to use, this would be hard to do, but I’ll try my best.