The Web just wants ... XLink and XInclude!!!

Basically, the BIG need in web apps is to build the page at runtime.
And currently, AJAX is the only option.

If XInclude and XLink engine were available in major browsers,
this declarative alternative to AJAX would DEFINITELY be used.

So, if you want greater adoption of XML technologies on the Web,
you simply have to implement XLink and XInclude in browsers, and promote it.

Code it inside the XML engine of browsers, or plug it in as a js magic
lib, or whatever,
but any declarative alternative to AJAX *is* a good move for the web.

My humble 2 cents.