Conclusions for Web Developers

Server-side growing ever-more powerful XML may make a lot of sense as a tool for managing content on the server, which is then sent to the client as HTML.
Client-side in chaos IE, Mozilla, Opera. Some intersections, many disjunctions.
Time to design application pathways If you can plot flows of information, you can get started on the server side and be prepared for the client side.
Time to re-examine site/application management XML can make a lot of Web publishing processes - linking, document management, transformation among different results - much easier.