I would like to use XForms but I haven't seen anything on this system that supports it, not surprising given that this is a new standard. So my question is whether there is something currently available that I might have missed.

I'm particularly looking for something that would be server-based since my application would have to work with existing browsers. The only thing I'm currently aware of that might fill this need is Chiba (http://chiba.sourceforge.net), which is an open source Java implementation of XForms.