I found this website that has some .svg images to use as backgrounds in gnome (ubuntu related). I just threw some on my desktop, and while they aren't really my style, it is amazing that I can have it "fill screen" without loosing any quality. Then, on top of that, the guy didn't specify a background color, so it is transparent! And you can change your desktop's background color to a solid color or gradient and it changes the entire theme of the graphic! (yes, I am easily amused)
yep svgs are rather nifty shame the current version of firefox doesnt support them properly like opera does though also you can use svgs for icons fyi
SVGs are great... I was doing some DTP work in Scribus last night, and needed a logo in a different colour and different size - changing colour/size in the GIMP would probably have degraded the quality of the .tif I had, but a quick trip to Inkscape and their "Convert Bitmap" function got me a top-quality SVG image that I can resize and re-colour endlessly with no loss of quality.
Firefox 1.0.7 supports svg, but you have to build it yourself with svg support enabled, from what I hear.