[zekica]

I used it. It's an (ugly) functional programming language that can transform one XML into another - think of it as Lisp for XML processing but even less readable.

It can work great when you have XML you want to present nicely in a browser by transforming it into XHTML while still serving the browser the original XML. One use I had was to show the contents of RSS/Atom feeds as a nice page in a browser.

[rwmj]

I would just do this on the server side. You can even do it statically when generating the XML. In fact until all the stuff about XSLT in browsers appeared recently, I didn't even know that browsers could do it.

[wizzwizz4]

Converting the contents of an Atom feed into (X)HTML means it's no longer a valid Atom feed. The same is true for many other document formats, such as flattened ODF.

[fuzzzerd]

I have done same thing with sitemap.xml.