I find myself longing for the old days, when I could design a web site in 5 minutes on a Sunday and then go play golf for the rest of the afternoon, and still collect a full week of salary for services rendered. That was back in 1996, when the internet was still new. Websites were created exclusively with HTML. The client would email me the content for their website, which I would upload to FrontPage, then insert some tags and a template for formatting and layout, add some graphics, and that was it.

If you create web sites for a living, you should probably take some time to familiarize yourself with E4X. Even though it is not actively used right now, it likely will be in the near future. For now, learning AJAX is probably more important because of the dominance of Internet Explorer as the web browser of choice, but that could change. If you have never studied E4X but are already familiar with XML, you can probably learn it through simple online tutorials because the syntax is not too complicated. If you have never studied XML, XHTML, XSL, or AJAX, then you need to enroll in some courses at a local computer programming institute immediately. Not knowing how to use these new languages could mean that your web sites will be invisible to wireless internet users.