Thanks for kind words, folks.
The example 4 is a demonstration of using SVG in HTML via the HTML5 spec. The only browser that supports this currently is Firefox 3.6. And unfortunately, we’re now finding out Firefox 3.6 only seems to support it in the Mac.
SVG-in-HTML5 support is enabled by default, and it is showing in my Mac Firefox 3.6, but just checked with an updated Windows version, and it isn’t. Well, isn’t this fun? Which just goes to show that SVG-in-HTML is still very new, very raw, and you might want to stick with either SVG-in-XHTML, or use the scripting libraries such as SVGWeb to incorporate in HTML. It will be a few years before we see widespread support for SVG in HTML.
Aaron, yes, that object code is copied as is directly from Jeff’s site. The span would normally enclose fallback text.
Imasanti, several applications support SVG, including Inkscape and Adobe Illustrator. I don’t think there’s a Flash-like equivalent for SVG, yet. I know folks were looking at creating one of these a year or so ago.