why use XHTML?

Continuing with the previous post...

I'm currently developing with HTML, DHTML and PHP. I dont like to stop learning new techs so I asked myself what to learn next.
I'm always listening about XML, I've seen a couple of tutorials but still dont get the point. So I've choosen XHTML because it seems simplier and currently better supported by browsers. But my question is:

Why use XHTML and for what? I mean, can I use it for my personal page? what benefits do I earn? XHTML its only intended for e-commerce sites?

If anyone can help me I would thank it a lot. I want real XHTML applications in real life when it really improves site performance and so.

TIA

XHTML won't improve jack if all you are worried about is presenting a page. Its just the next generation of html that forces XML compliance (well-formed and valid).

XML's strength comes from eXtensible. Its true power is in the ability to store data in a meaningful way for both machines and humans.

Use both... Present your data as XML, then use Xorro to transform your XHTML into XSLT.

- View a description of Xorro:
URL

- Download the latest version with a demo:
URL

Enjoy!

- Colin (xorro@thawte.com)