Among the points he made:
"A critical aspect of web services is that resources are separated from HTML and thus separated from reliance on traditional desktop browsers. As such services proliferate, so too will thick client applications that engage directly with the web services, by-passing HTML based user interfaces."
So where could we look for a thicker client for Web-services? Presumably XML-based.
Now, could it be that there is an XML application language ideally suited to provide an aspect of these coming thicker clients?