Having provided a full and public review of XML Schemas to the W3C working group, I'm quite aware of what their strengths and weaknesses. I see almost no need for XML Schemas in the world of topic maps, in fact I only see the danger of them being abused by companies with proprietary agendas. Everything we need is easily supplied by the current syntax, a template language, and a query language. Well then, I guess we'll have to agree to disagree. I've been spending the last week or so finishing up a parser that builds an XTM topic map from a Cyc ontology file.
Syntax is irrelevant.
The proof is in the pudding, and we're already eating it. In the evening The rice leaves in the garden Rustle in the autumn wind That blows through my reed hut.