Given that this site is mainly concerned with CSS3 and other new hotness, I'd say their implication is that people these days use HTML5. While I'm not sure I'd

Given that this site is mainly concerned with CSS3 and other new hotness, I'd say their implication is that people these days use HTML5. While I'm not sure I'd suggest using the new HTML5 tags in all projects yet, I think it's fair to say that there's no future in XHTML, and that you might as well use <!DOCTYPE html> and just stick to HTML4.01 compatible tags. I don't see why XHTML would be any easier to manage than well-formed HTML, provided you trigger standards mode and the right IE-compatibility modes.