Er - you know that the internet is more than the web, right? For instance, I do a lot of code based on top of twisted, and a very, very small amount of it is web-based.
The approach used in something like twisted is still useful, even if the web didn't suck.
I don't think Twisted's use of continuations looks much like Seaside's. Twisted is very explicit about where a continuation is formed and returned (via Deferreds), while in Seaside it is entirely implicit. CherryFlow is the only system I'm aware of that does Seaside-style continuations (using Stackless).# Ian Bicking