>And, I mentioned the subject because that day was also the day when UIFL announced their patent on the XML technology. So, even if XML is easy to learn, as you pointed out, and takes nothing more than a few ideas and Notepad, if the output is used on a website and UIFL takes notice expect to hear from their lawyers. Is it clear now?

Phffff. Do you have a URL? I can't find anything about this on Google. If that company sued me because I used XML in one of my products they wouldn't have a leg to stand on. They should also be filling against Apple, Microsoft, Sun, Oracle, and IBM.