I've had it in mind to start an opensource project (maybe sourceforge)
to create XForms forms for UBL. I've a form which could be a starting
point. It would be the first time I've tried such a project so it could be
a while before anything gets going but if anyone is interested and
patient enough to keep an eye out for future announcements... or
has ideas about it in general I'd be grateful to hear any feedback. I
guess it could go a long way or just fizzle out but either way might
produce something to help others trying to do something similar and
provide for validation (or otherwise) of some of the proposals for
UBL deployment (such as codelists and business rules, say). Of course
it seems unusual to have a project like this for XForms but why not.
I've seen such projects around to develope XSLT stylesheets. Plus a
stylesheet to dynamically create the XForms from UBL artefacts could be
part of it too.